EP2655621A1 - Polycomb-assoziierte nicht-kodierende rnas - Google Patents
Polycomb-assoziierte nicht-kodierende rnasInfo
- Publication number
- EP2655621A1 EP2655621A1 EP11852141.8A EP11852141A EP2655621A1 EP 2655621 A1 EP2655621 A1 EP 2655621A1 EP 11852141 A EP11852141 A EP 11852141A EP 2655621 A1 EP2655621 A1 EP 2655621A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nucleic acid
- rna
- inhibitory nucleic
- seq
- bases
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 108091027963 non-coding RNA Proteins 0.000 title 1
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- 238000000034 method Methods 0.000 claims abstract 53
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- 239000012634 fragment Substances 0.000 claims abstract 7
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- 108091032973 (ribonucleotides)n+m Proteins 0.000 claims 21
- 230000014509 gene expression Effects 0.000 claims 17
- 108090000623 proteins and genes Proteins 0.000 claims 17
- 230000000295 complement effect Effects 0.000 claims 15
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- 238000013507 mapping Methods 0.000 claims 6
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims 5
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- 239000004055 small Interfering RNA Substances 0.000 claims 4
- 102000040650 (ribonucleotides)n+m Human genes 0.000 claims 3
- 241000124008 Mammalia Species 0.000 claims 3
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- 238000012228 RNA interference-mediated gene silencing Methods 0.000 claims 3
- 230000027455 binding Effects 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 3
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- 230000003247 decreasing effect Effects 0.000 claims 2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
- C12N2310/113—Antisense targeting other non-coding nucleic acids, e.g. antagomirs
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/14—Type of nucleic acid interfering N.A.
Definitions
- This invention relates to polycomb-associated long non-coding RNAs (lncRNAs) that function to modulate gene expression, and methods of using them or inhibitory nucleic acids that bind them, to modulate gene expression.
- lncRNAs polycomb-associated long non-coding RNAs
- Transcriptome analyses have suggested that, although only 1-2% of the mammalian genome is protein-coding, 70-90% is transcriptionally active (Carninci et al, 2005; Kapranov et al, 2007; Mercer et al, 2009). Ranging from 100 nt to >100 kb, these transcripts are largely unknown in function, may originate within or between genes, and may be conserved and developmentally regulated (Kapranov et al, 2007; Guttman et al, 2009). Recent discoveries argue that a subset of these transcripts play crucial roles in epigenetic regulation.
- genes in the human HOX-D locus are regulated in trans by HOTAIR RNA, produced by the unlinked HOX-C locus (Rinn et al., 2007), and during X-chromosome inactivation, Tsix, RepA, and Xist RNAs target a chromatin modifier in cis to control chromosome-wide silencing (Zhao et al, 2008).
- all four RNAs bind and regulate Polycomb Repressive Complex 2 (PRC2), the complex that catalyzes trimethylation of histone H3-lysine27 (H3-K27me3)(Schwartz and Pirrotta, 2008).
- PRC2 Polycomb Repressive Complex 2
- Polycomb's role in health little is known about their regulation in vivo.
- Polycomb complexes may contain sequence-specific DNA-binding factors, such as Zeste, Pipsqueak (PSQ), or Pho, to help bind Polycomb-response elements (PRE) (Ringrose and Paro, 2004; Schwartz and Pirrotta, 2008).
- sequence-specific DNA-binding factors such as Zeste, Pipsqueak (PSQ), or Pho
- PSQ Pipsqueak
- Pho Polycomb-response elements
- mammalian Polycomb complexes are not thought to contain such subunits.
- RNA-binding motifs (Denisenko et al, 1998; Bernstein and Allis, 2005; Bernstein et al, 2006b) - a possibility borne out by postulated functional interactions between Tsix/RepA/Xist RNA and PRC2 for X-inactivation (Zhao et al, 2008) and by HOTAIR and PRC2 for HOX regulation (Rinn et al., 2007).
- Recent work also identified several short RNAs of 50-200 nt as candidate PRC2 regulators (Kanhere et al, 2010). Control of Polycomb repressive comp lex 1 (PRC1) may also involve RNA (Yap et al, 2010).
- ncRNAs may have a function as an epigenetic regulator/RNA cofactor in chromatin remodeling and tumor suppression.
- knockdown technologies employing siRNAs and shRNAs have become staples in functional analysis of microRNAs (miRNAs) and cytoplasmically localized messenger RNAs (mRNAs) (4-6), these methods have been reported in some instances to be less consistently effective for long ncRNAs localized to the nucleus (Jepsen et al., Oligonucleotides, 14, 130-146 (2004)).
- RNA immunoprecipitation (RlP)-seq was used to identify a genome-wide pool of >57,000 polycomb repressive complex 2 (PRC2)-interacting RNAs in embryonic stem cells (referred to herein as the
- the transcriptome includes antisense, intergenic, and promoter-associated transcripts, as well as many unannotated RNAs. A large number of transcripts occur within imprinted regions, oncogene and tumor suppressor loci, and stem-cell-related bivalent domains. Evidence for direct RNA-protein interactions, some via the Ezh2 subunit, is provided. Further evidence is provided that inhibitory oligonucleotides that specifically bind to these PRC2-interacting RNAs can successfully up-regulate gene expression in a variety of separate and independent examples, presumably by inhibiting PRC2-associated repression. Thus, Polycomb proteins interact with a genome-wide family of RNAs, some of which may be used as biomarkers and therapeutic targets for human disease.
- nRNAs nuclear ribonucleic acids
- the methods include providing a sample comprising nuclear ribonucleic acids, e.g., a sample comprising nuclear lysate, e.g., comprising nRNAs bound to nuclear proteins; contacting the sample with an agent, e.g., an antibody, that binds specifically to a nuclear protein or protein complex such as PRC2, under conditions sufficient to form complexes between the agent and the protein; isolating the complexes; synthesizing DNA complementary to the nRNAs to provide an initial population of cDNAs; PCR- amplifying, if necessary, using strand-specific primers; purifying the initial population of cDNAs to obtain a purified population of cDNAs that are at least about 20 nucleotides (nt) in length, e.g., at least 25, 50, 75, 100, 150, 200, or
- selecting high-confidence cDNA sequences optionally, based on criteria that (1) the candidate transcript has a minimum read density in reads per kilobase per million reads (RPKM) terms (e.g., above a desired threshold); and/or (2) the candidate transcript is enriched in the wildtype library versus a suitable control library (such as an IgG pulldown library or a protein-null pulldown library); thereby preparing the plurality of cDNAs.
- RPKM kilobase per million reads
- suitable control library such as an IgG pulldown library or a protein-null pulldown library
- the methods can include providing a sample comprising nuclear ribonucleic acids, e.g., a sample comprising nuclear lysate, e.g., comprising nRNAs bound to nuclear proteins; contacting the sample with an agent, e.g., an antibody, that binds specifically to a nuclear protein or protein complex such as PRC2, under conditions sufficient to form complexes between the agent and the protein, e.g., such that the nRNAs remain bound to the proteins; isolating the complexes; synthesizing DNA complementary to the nRNAs to provide an initial population of cDNAs; optionally PCR-amplifying the cDNAs using strand-specific primers; purifying the initial population of cDNAs to obtain a purified population of cDNAs that are at least about 20 nucleotides (nt) in length, e.g., at least 25, 50, 100, 150 or 200 nt in length; sequencing at least part or substantially all of the purified population of cDNAs
- the method is used to prepare a library representing a transcriptome associated with the protein of interest.
- the agent is an antibody and isolating the complexes comprises immunoprecipitating the complexes.
- the cDNAs are synthesized using strand-specific adaptors.
- the methods further include sequencing substantially all of the cDNAs.
- the invention features an inhibitory nucleic acid that specifically binds to, or is complementary to, an RNA that binds to Polycomb repressive complex 2 (PRC2), for example, any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931.
- PRC2 Polycomb repressive complex 2
- these inhibitory nucleic acids are able to interfere with the binding of and function of PRC2, by preventing recruitment of PRC2 to a specific chromosomal locus.
- data herein shows that a single administration of inhibitory nucleic acids designed to specifically bind a IncRNA can stably displace not only the IncRNA but also the PRC2 that binds to the IncRNA, from binding chromatin.
- the inhibitory nucleic acid is provided for use in a method of modulating expression of a "gene targeted by the PRC2 -binding RNA” (e.g., an intersecting or nearby gene, as set forth in Tables 1-4 below), meaning a gene whose expression is regulated by the PRC2- binding RNA.
- a gene targeted by the PRC2 -binding RNA e.g., an intersecting or nearby gene, as set forth in Tables 1-4 below
- PRC2-binding RNA or "RNA that binds PRC2” is used interchangeably with “PRC2-associated RNA” and “PRC2-interacting RNA”, and refers to an RNA transcript or a region thereof (e.g., a Peak as described below) that binds the PRC2 complex, directly or indirectly.
- SEQ ID NOS: 1 to 934,968 represent murine RNA sequences containing portions that have been experimentally determined to bind PRC2 using the RIP-seq method described herein, or human RNA sequences corresponding to these murine RNA sequences.
- Such methods of modulating gene expression may be carried out in vitro, ex vivo, or in vivo.
- Table 2 displays genes targeted by the PRC2-binding RNA; the SEQ ID NOS: of the PRC2-associated RNA are set forth in the same row as the gene name.
- the inhibitory nucleic acid is provided for use in a method of treating disease, e.g. a disease category as set forth in Table 3 or 4.
- the treatment may involve modulating expression (either up or down) of a gene targeted by the PRC2 -binding RNA, preferably upregulating gene expression.
- the inhibitory nucleic acid may be formulated as a sterile composition for parenteral administration.
- any reference to uses of compounds throughout the description contemplates use of the compound in preparation of a pharmaceutical composition or medicament for use in the treatment of a disease.
- this aspect of the invention includes use of such inhibitory nucleic acids in the preparation of a medicament for use in the treatment of disease, wherein the treatment involves upregulating expression of a gene targeted by the PRC2-binding RNA.
- Diseases, disorders or conditions that may be treated according to the invention include cardiovascular, metabolic, inflammatory, bone, neurological or neurodegenerative, pulmonary, hepatic, kidney, urogenital, bone, cancer, and/or protein deficiency disorders. Examples of categories of diseases are set forth in Tables 3 and 4.
- the invention features a process of preparing an inhibitory nucleic acid that modulates gene expression, the process comprising the step of synthesizing an inhibitory nucleic acid of between 5 and 40 bases in length, or about 8 to 40, or about 5 to 50 bases in length, optionally single stranded, that specifically binds, or is complementary to, an RNA sequence that has been identified as binding to PRC2, optionally an RNA of any of Tables 1 -4 or any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931.
- This aspect of the invention may further comprise the step of identifying the RNA sequence as binding to PRC2, optionally through the RIP-seq method described herein.
- a process of preparing an inhibitory nucleic acid that specifically binds to an RNA that binds to Polycomb repressive complex 2 comprising the step of designing and/or synthesizing an inhibitory nucleic acid of between 5 and 40 bases in length, or about 8 to 40, or about 5 to 50 bases in length, optionally single stranded, that specifically binds to an RNA sequence that binds to PRC2, optionally an RNA of any of Tables 1-4 or any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931 .
- PRC2 Polycomb repressive complex 2
- the process prior to synthesizing the inhibitory nucleic acid the process further comprises identifying an RNA that binds to PRC2.
- the RNA has been identified by a method involving identifying an RNA that binds to PRC2.
- the inhibitory nucleic acid is at least 80%
- RNA sequence complementary to a contiguous sequence of between 5 and 40 bases, or about 8 to 40, or about 5 to 50 bases in said RNA sequence that binds to PRC2.
- sequence of the designed and/or synthesized inhibitory nucleic acid is based on a said RNA sequence that binds to PRC2, or a portion thereof, said portion having a length of from 5 to 40 contiguous base pairs, or about 8 to 40 bases, or about 5 to 50 bases.
- sequence of the designed and/or synthesized inhibitory nucleic acid is based on a nucleic acid sequence that is complementary to said RNA sequence that binds to PRC2, or is complementary to a portion thereof, said portion having a length of from 5 to 40 contiguous base pairs, or about 8 to 40 base pairs, or about 5 to 50 base pairs.
- the designed and/or synthesized inhibitory nucleic acid may be at least 80% complementary to (optionally one of at least 90%, 95%, 96%, 97%, 98%, 99% or 100% complementary to) the portion of the RNA sequence to which it binds or targets, or is intended to bind or target.
- it may contain 1, 2 or 3 base mismatches compared to the portion of the target RNA sequence or its complement respectively. In some embodiments it may have up to 3 mismatches over 15 bases, or up to 2 mismatches over 10 bases.
- the inhibitory nucleic acid or portion of RNA sequence that binds to PRC2 may have a length of one of at least 8 to 40, or 10 to 50, or 5 to 50, or 5 to 40 bases, e.g., 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50 bases.
- inhibitory nucleic acid is based on an RNA sequence that binds to PRC2
- a nucleic acid sequence that is complementary to said RNA sequence that binds to PRC2 or a portion of such a sequence it may be based on information about that sequence, e.g. sequence information available in written or electronic form, which may include sequence information contained in publicly available scientific publications or sequence databases.
- design and/or synthesis involves design and/or synthesis of a sequence that is complementary to a nucleic acid described by such sequence information the skilled person is readily able to determine the complementary sequence, e.g. through understanding of Watson-Crick base pairing rules which form part of the common general knowledge in the field.
- RNA that binds to PRC2 may be, or have been, identified, or obtained, by a method that involves identifying RNA that binds to PRC2.
- Such methods may involve the following steps: providing a sample containing nuclear ribonucleic acids, contacting the sample with an agent that binds specifically to PRC2 or a subunit thereof, allowing complexes to form between the agent and protein in the sample, partitioning the complexes, synthesizing nucleic acid that is complementary to nucleic acid present in the complexes.
- the method may further comprise the steps of amplifying the synthesized nucleic acid, and/or purifying the nucleic acid (or amplified nucleic acid), and/or sequencing the nucleic acids so obtained, and/or filtering/analysing the nucleic acids so obtained to identify high-probability PRC2 (or subunit thereof)-interacting transcripts.
- the method involves the Rip-Seq method described herein.
- the RNA that binds to PRC2 may be one that is known to bind PRC2, e.g. information about the sequence of the RNA and/or its ability to bind PRC2 is available to the public in written or electronic form allowing the design and/or synthesis of the inhibitory nucleic acid to be based on that information.
- an RNA that binds to PRC2 may be selected from known sequence information and used to inform the design and/or synthesis of the inhibitory nucleic acid.
- RNA that binds to PRC2 may be identified as one that binds PRC2 as part of the method of design and/or synthesis.
- design and/or synthesis of an inhibitory nucleic acid involves manufacture of a nucleic acid from starting materials by techniques known to those of skill in the art, where the synthesis may be based on a sequence of an RNA (or portion thereof) that has been selected as known to bind to Polycomb repressive complex 2.
- Methods of design and/or synthesis of an inhibitory nucleic acid may involve one or more of the steps of:
- RNA sequence that binds to PRC2 Identifying and/or selecting an RNA sequence that binds to PRC2;
- RNA sequence that binds to PRC2 Identifying and/or selecting a portion of an RNA sequence that binds to PRC2
- Inhibitory nucleic acids so designed and/or synthesized may be useful in method of modulating gene expression as described herein.
- the process of preparing an inhibitory nucleic acid may be a process that is for use in the manufacture of a pharmaceutical composition or medicament for use in the treatment of disease, optionally wherein the treatment involves modulating expression of a gene targeted by the RNA binds to PRC2.
- the invention provides isolated nucleic acids comprising a sequence referred to in any of Tables 1-4, or in Appendix I of U.S. Prov. Appln. No. 61/425, 174 filed on December 20, 2010, which is not attached hereto but is incorporated by reference herein in its entirety, or a fragment comprising at least 20 nt thereof, e.g., as shown in Appendix I.
- the invention provides an isolated nucleic acid comprising (a) an RNA sequence as set forth in Table 2 that targets a gene in category 205 (proto-oncogene or oncogene) as set forth in Table 3, or (b) a fragment of (a) that is at least 20 bases in length that retains PRC2- binding activity, or (c) a derivative of (a) or (b) that is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% homologous thereto, or (d) a nucleic acid of (a), (b), or (c) in which one or more bases has been replaced with a base of similar base-pairing capacity, such as replacing U with T.
- the isolated nucleic acid of (a), (b) or (c) is for use in a method of decreasing expression of an oncogene.
- the isolated nucleic acid is synthetic.
- the isolated lncRNA comprises a SEQ ID NO. associated with Pvtl in Table 2, or a fragment thereof.
- Pvtl is known in the art to be disrupted in some cases of Burkitt's lymphoma as well as in plasmacytomas (e.g., by translocations from another chromosome). Therefore, Pvtl is likely to act by targeting PRC2 to c-Myc in order to repress its expression. Accordingly, exogenous administration of any of the RNA sequences associated with Pvtl in Table 2, or fragments thereof could rescue Pvtl loss-of- function phenotypes contributing to various cancers.
- the invention provides methods for decreasing expression of an oncogene in a cell.
- the methods include contacting the cell with a long non-coding RNA, or PRC2-binding fragment thereof described in any of Tables 1-3, or a nucleic acid sequence that is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% homologous to a lncRNA sequence, or PRC2 -binding fragment thereof, as referred to in any of Tables 1-3.
- the IncRNA is (a) an RNA sequence as set forth in Table 2 that targets a gene in category 205 (proto-oncogene or oncogene) as set forth in Table 3, or (b) a fragment thereof at least 20 bases in length that retains PRC2 -binding activity, or (c) a derivative of (a) or (b) that is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% homologous thereto, or (d) a nucleic acid of (a), (b), or (c) in which one or more bases has been replaced with a base of similar base-pairing capacity, such as replacing U with T.
- PRC2 -binding fragments of murine or orthologous lncRNAs, including human IncRNA, which retain the lncRNA's ability to bind PRC2, are contemplated.
- the invention features methods for increasing expression of a tumor suppressor in a mammal, e.g. human, in need thereof.
- the methods include administering to said mammal an inhibitory nucleic acid that specifically binds, or is complementary, to a human PRC2-interacting IncRNA corresponding to a tumor suppressor locus of any of Tables 1-3 or a human IncRNA corresponding to an imprinted gene of Table 4, and/or a human IncRNA corresponding to a growth suppressing gene of any of Tables 1-3, or a related naturally occurring IncRNA that is othologous or at least 90%, (e.g., 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%%, or 100%) identical over at least 15 (e.g., at least 20, 21, 25, 30, 100) nucoleobases thereof, in an amount effective to increase expression of the tumor suppressor or growth suppressing gene.
- a related naturally occurring IncRNA that is othologous or at least 90%, (e.g
- corresponding human sequence at least 90% identical (e.g., 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% identical) to at least 15 nucleobases of the murine sequence (or at least 20, 21, 25, 30, 40, 50, 60, 70, 80, 90 or 100 nucleobases).
- the invention provides methods for inhibiting or suppressing tumor growth in a mammal, e.g. human, with cancer, comprising administering to said mammal an inhibitory nucleic acid that specifically binds, or is complementary, to a human PRC2-interacting IncRNA corresponding to a tumor suppressor locus of any of Tables 1-3, or a human IncRNA corresponding to an imprinted gene of Table 4, and/or a human IncRNA corresponding to a growth- suppressing gene of any of Tables 1-3, or a related naturally-occurring IncRNA that is orthologous or at least 90%, (e.g., 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or 100%) identical over at least 15 (e.g., at least 20, 21, 25, 30, 50, 70, 100) nucleobases thereof, in an amount effective to suppress or inhibit tumor growth.
- an inhibitory nucleic acid that specifically binds, or is complementary, to a human PRC2-interacting IncRNA corresponding to
- the invention features methods for treating a mammal, e.g., a human, with cancer comprising administering to said mammal an inhibitory nucleic acid that specifically binds, or is complementary, to a human IncRNA corresponding to a tumor suppressor locus of any of Tables 1-3, or a human IncRNA corresponding to an imprinted gene of Table 4, and/or a human IncRNA corresponding to a growth- suppressing gene of any of Tables 1-3, or a related naturally occurring IncRNA that is orthologous or at least 90% (e.g.,91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100%) identical over at least 15 (e.g., at least 20, 21, 25, 30, 50, 70, 100) nucleobases thereof, in a therapeutically effective amount.
- an inhibitory nucleic acid that specifically binds, or is complementary, to a human IncRNA corresponding to a tumor suppressor locus of any of Tables 1-3, or a human
- the inhibitory nucleic acid is an oligomeric base compound or oligonucleotide mimetic that hybridizes to at least a portion of the target nucleic acid and modulates its function. In some or any embodiments, the inhibitory nucleic acid is single stranded or double stranded. A variety of exemplary inhibitory nucleic acids are known and described in the art.
- the inhibitory nucleic acid is an antisense oligonucleotide, locked nucleic acid (LNA) molecule, peptide nucleic acid (PNA) molecule, ribozyme, siRNA, antagomirs, external guide sequence (EGS) oligonucleotide, microRNA (miRNA), small, temporal RNA
- LNA single- or double-stranded RNA interference
- LNA molecule refers to a molecule that comprises at least one LNA modification; thus LNA molecules may have one or more locked nucleotides (conformationally constrained) and one or more non-locked nucleotides.
- LNA includes a nucleotide that comprises any constrained sugar that retains the desired properties of high affinity binding to complementary RNA, nuclease resistance, lack of immune stimulation, and rapid kinetics. Exemplary constrained sugars include those listed below.
- PNA molecule refers to a molecule that comprises at least one PNA modification and that such molecules may include unmodified nucleotides or internucleoside linkages.
- the inhibitory nucleic acid comprises at least one nucleotide and/or nucleoside modification (e.g., modified bases or with modified sugar moieties), modified internucleoside linkages, and/or combinations thereof.
- nucleoside modification e.g., modified bases or with modified sugar moieties
- inhibitory nucleic acids can comprise natural as well as modified nucleosides and linkages. Examples of such chimeric inhibitory nucleic acids, including hybrids or gapmers, are described below.
- the inhibitory nucleic acid comprises one or more modifications comprising: a modified sugar moiety, and/or a modified internucleoside linkage, and/or a modified nucleotide and/or combinations thereof.
- the modified internucleoside linkage comprises at least one of:
- alkylphosphonate phosphorothioate, phosphorodithioate, alkylphosphonothioate, phosphoramidate, carbamate, carbonate, phosphate triester, acetamidate,
- the modified sugar moiety comprises a 2'-0-methoxyethyl modified sugar moiety, a 2'-methoxy modified sugar moiety, a 2'-0-alkyl modified sugar moiety, or a bicyclic sugar moiety.
- LNA locked nucleic acid
- PNA peptide nucleic acid
- ANA arabinonucleic acid
- FANA phosphorodiamidate morpholino oligomer
- ENA ethylene -bridged nucleic acid
- BNA bicyclic nucleic acid
- the inhibitory nucleic acid is double stranded and blunt-ended.
- the inhibitory nucleic acid comprises or consists of a sequence of bases at least 80% or 90% complementary to, e.g., at least 5, 10, 15, 20, 25 or 30 bases of, or up to 30 or 40 bases of, the target RNA, or comprises a sequence of bases with up to 3 mismatches (e.g., up to 1, or up to 2 mismatches) over 10, 15, 20, 25 or 30 bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases at least 80% complementary to at least 10 contiguous bases of the target RNA, or at least 80% complementary to at least 15, or 15-30, or 15-40 contiguous bases of the target RNA, or at least 80% complementary to at least 20, or 20-30, or 20-40 contiguous bases of the target RNA, or at least 80% complementary to at least 25, or 25-30, or 25-40 contiguous bases of the target RNA, or at least 80% complementary to at least 30, or 30-40 contiguous bases of the target RNA, or at least 80%
- the inhibitory nucleic acid can comprise or consist of a sequence of bases at least 90% complementary to at least 10 contiguous bases of the target RNA, or at least
- the inhibitory nucleic acid can comprise or consist of a sequence of bases fully complementary to at least 5, 10, or 15 contiguous bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases with up to 2 mismatches over 10 contiguous bases of the target RNA, or up to 2 mismatches over 15 contiguous bases of the target RNA, or up to 2 mismatches over 20 contiguous bases of the target RNA, or up to 2 mismatches over 25 contiguous bases of the target RNA, or up to 2 mismatches over 30 contiguous bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases with one mismatch over 10, 15, 20, 25 or 30 contiguous bases of the target RNA.
- the inhibitory nucleic acid comprises or consists of a sequence of bases about 5 to 40, or 8 to 40, or 10 to 50, or 5 to 50 bases in length, comprising a base sequence at least 80% complementary to (optionally one of at least 90%, 95%, 96%, 97%, 98%, 99% or 100% complementary to) a contiguous sequence of at least 5 to 40 bases, or 8 to 40, or 10 to 50, or 5 to 50 bases (optionally one of at least 10, 15, 20, 25 or 30 bases, or one of 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50 bases) of the target IncRNA.
- the inhibitory nucleic acid may comprise or consist of a sequence of at least 5 to 40, or 8 to 40, or 5 to 50,or 10 to 50, bases (optionally one of at least 10, 15, 20, 25 or 30 bases, or one of 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50 bases) having at least 80% identity to (optionally one of at least 90%, 95%, 96%, 97%, 98%, 99% or 100% identity to) a contiguous sequence of bases of the same length of an antisense nucleic acid that is completely complementary in sequence to the target IncRNA.
- sequence of the inhibitory nucleic acid may contain 1, 2 or 3 mismatches in complementary base pairing compared to the target IncRNA sequence, over 10, 15, 20, 25 or 30 bases (optionally one of 10, 1 1, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 or 30 bases) of the target IncRNA.
- the inhibitory nucleic acid is 5 to 40, or 8 to 40, or 10 to 50 bases in length (e.g., 12-30, 12-28, 12-25, 5-25, or 10-25, bases in length), and comprises a sequence of bases with up to 3 mismatches in complementary base pairing over 15 bases of , or up to 2 mismatches over 10 bases.
- gene expression is modulated in a cell.
- the cell is a cancer cell, e.g., a tumor cell, in vitro or in vivo, e.g., in a subject.
- the cell is a stem cell that is contacted with the inhibitory nucleic acid, PRC2-binding IncRNA, or fragment thereof, ex vivo, for example to enhance pluripotency, enhance differentiation, or induce the stem cell to differentiate to a particular cell type, e.g.
- nerve ⁇ neuron dopaminergic neuron, muscle, skin, heart, kidney, liver, lung, neuroendocrine, retinal, retinal pigment epithelium, pancreatic alpha or beta cells, hematopoietic, chondrocyte, bone cells and/or blood cells (e.g., T-cells, B-cells, macrophages, erythrocytes, platelets, and the like).
- the invention provides methods for enhancing pluripotency of a stem cell.
- the methods include contacting the cell with a long non- coding RNA, or PRC2-binding fragment thereof, as referred to in Table 4 or a nucleic acid sequence that is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% homologous to a IncRNA sequence, or PRC2-binding fragment thereof, as referred to in Table 4 .
- PRC2 -binding fragments of murine or orthologous IncRNAs, including human IncRNA are contemplated in the aforementioned method.
- the invention features methods for enhancing
- differentiation of a stem cell comprising contacting the cell with an inhibitory nucleic acid that specifically binds, or is complementary, to a long non- coding RNA as referred to in Table 4.
- the stem cell is an embryonic stem cell. In some embodiments, the stem cell is an iPS cell or an adult stem cell.
- the invention provides sterile compositions including an inhibitory nucleic acid that specifically binds to or is at least 90% complementary to (e.g., at least 5, 10, 15, 20, 25 or 30 bases of, or up to 30 or 40 bases of) a IncRNA of any of Tables 1-4, or any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931, or a related naturally occurring IncRNA at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% identical to at least 15 (e.g., at least 20, 21, 25, 30, 100) nucleobases of an IncRNA of any of Tables 1-4 or any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931, for parenteral administration.
- an inhibitory nucleic acid that specifically binds to or is at least 90% complementary to (e.g., at least 5, 10, 15, 20, 25 or 30 bases of, or up to 30
- the inhibitory nucleic acid is selected from the group consisting of antisense oligonucleotides, ribozymes, external guide sequence (EGS) oligonucleotides, siRNA compounds, micro RNAs (miRNAs); small, temporal RNAs (stRNA), and single- or double-stranded RNA interference (RNAi) compounds.
- the RNAi compound is selected from the group consisting of short interfering RNA (siRNA); or a short, hairpin RNA (shRNA); small RNA-induced gene activation (RNAa); and small activating RNAs (saRNAs).
- the antisense oligonucleotide is selected from the group consisting of antisense RNAs, antisense DNAs, chimeric antisense oligonucleotides, and antisense oligonucleotides.
- the inhibitory nucleic acid comprises one or more modifications comprising: a modified sugar moiety, a modified internucleoside linkage, a modified nucleotide and/or combinations thereof.
- the modified internucleoside linkage comprises at least one of: alkylphosphonate, phosphorothioate, phosphorodithioate, alkylphosphonothioate, phosphoramidate, carbamate, carbonate, phosphate triester, acetamidate, carboxymethyl ester, or combinations thereof.
- the modified sugar moiety comprises a 2'-0-methoxyethyl modified sugar moiety, a 2'-methoxy modified sugar moiety, a 2'- O-alkyl modified sugar moiety, or a bicyclic sugar moiety.
- modifications include locked nucleic acid (LNA), peptide nucleic acid (PNA), arabinonucleic acid (ANA), optionally with 2'-F modification, 2'-fluoro-D- Arabinonucleic acid (FANA), phosphorodiamidate morpholino oligomer (PMO), ethylene -bridged nucleic acid (ENA), optionally with 2'-0,4'-C-ethylene bridge, and bicyclic nucleic acid (BNA).
- LNA locked nucleic acid
- PNA peptide nucleic acid
- ANA arabinonucleic acid
- FANA phosphorodiamidate morpholino oligomer
- ENA ethylene -bridged nucleic acid
- BNA bicycl
- PRC2-binding fragments of any of the RNA set forth in the sequence listing as summarized below are contemplated.
- the fragments may recruit PRC2 and enhance PRC2 activity, thereby repressing gene expression, while in other instances the fragments may interfere with PRC2 activity by masking the lncRNA- binding sites on PRC2.
- the invention features uses of fragments of the RNA below to modulate expression of any of the genes set forth in Tables 1-4, for use in treating a disease, disorder, condition or association described in any of the categories set forth in Table 3 or 4 (whether in the "opposite strand” column or the "same strand” column).
- inhibitory nucleic acids that specifically bind to any of the RNA set forth in the sequence listing as summarized below, any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931, are also contemplated.
- the invention features uses of these inhibitory nucleic acids to upregulate expression of any of the genes set forth in Tables 1 -4, for use in treating a disease, disorder, condition or association described in any of the categories set forth in Table 3 or 4 (whether in the "opposite strand” column or the "same strand”); upregulations of a set of genes grouped together in any one of the categories is contemplated.
- Evidence is provided herein that such inhibitory nucleic acids increased expression of mRNA
- expression may be increased by at least about 15-fold, 20-fold, 30-fold, 40-fold, 50- fold or 100-fold, or any range between any of the foregoing numbers.
- increased mRNA expression has been shown to correlate to increased protein expression.
- SEQ ID NO. SEQ ID NO. Transcripts Mus musculus 1 47407
- the SEQ ID number refers to the RNA that associates (binds) with PRC2 (i.e., the RNA against which inhibitory nucleic acids would be directed).
- PRC2 i.e., the RNA against which inhibitory nucleic acids would be directed.
- PRC2-binding transcripts or Peaks i.e., smaller regions of RNA that bind to PRC2
- the inhibitory nucleic acids that specifically bind to, or are complementary to, the PRC2 -binding transcripts or Peaks may conveniently be grouped into any of these categories, represented by numbers in Table 3 as follows:
- ALS Amyotrophic lateral sclerosis
- ARVC Arrhythmogenic right ventricular cardiomyopathy
- HCM Hypertrophic cardiomyopathy
- Non-small cell lung cancer also in category 644
- Vitamin A deficiency 600 Downregulated in Vitamin A deficiency 600 is associated w th Bone diseases
- 601 is associated w th Cancer diseases, also in category 644
- 603 is associated w th Connective tissue disorder diseases
- 606 is associated w th Ear,Nose,Throat diseases
- Metabolic diseases 634 is decreased in multiple diseases
- the invention features inhibitory nucleic acids that specifically bind to any of the RNA sequences of any of Tables 1-4, for use in modulating expression of a group of reference genes that fall within any one or more of the categories set forth in the tables, and for treating the corresponding diseases, disorders or conditions in any one or more of the categories set forth in Table 3 or 4 (which sets forth the diseases, disorders or conditions associated with each reference gene).
- the invention also features inhibitory nucleic acids that specifically bind, or are complementary, to any of the RNA sequences of SEQ ID NOS: 47,408 to 616,428 [mouse Peaks] or 652,256 to 916,209 [human Peaks] or 916,626 to 934,761 [longer region surrounding human Peaks], whether in the "opposite strand” column or the "same strand” column of Table 2.
- the inhibitory nucleic acid is provided for use in a method of modulating expression of a gene targeted by the PRC2-binding RNA (e.g., an intersecting or nearby gene, as set forth in any of Tables 1-4 below).
- the inhibitory nucleic acid is provided for use in methods of treating disease, e.g. as described in Table 3 below.
- the treatments may involve modulating expression (either up or down) of a gene targeted by the PRC2 -binding RNA, preferably upregulating gene expression.
- the inhibitory nucleic acid is formulated as a sterile composition for parenteral administration.
- the reference genes targeted by these RNA sequences are set forth in Tables 2-4 and are grouped according to categories 1-644 in Table 3 or are imprinted genes set forth in Table 4.
- the invention describes a group of inhibitory nucleic acids that specifically bind, or are complementary to, a group of RNA sequences, either transcripts or Peaks, in any one of categories 1-644.
- the invention features uses of such inhibitory nucleic acids to upregulate expression of any of the reference genes set forth in Tables 2-3, for use in treating a disease, disorder, condition or association described in any of the categories set forth in Table 3 (e.g., any one or more of category numbers 11, 14, 15, 17, 21, 24, 26, 42, 44, 49, 58, 69, 82, 103, 119, 120, 126, 143, 163, 167, 172, 177, 182, 183, 184, 187, 191, 196, 200, 203, 204, 212, 300- 323, and/or 400-644).
- category 45 includes reference genes selected from the group consisting of A2M, SERPINC1, BDKRB1, BDKRB2, CFB, SERPING1, C1QA, C1QB, C1QC, C1R, CIS, C2, C3, C3AR1, C4A, C4B, C4BPA, C4BPB, C5, C5AR1, C6, C7, C8A, C8B, C9, CD59, CPB2, CR1, CR2, CD55, CFD, F2, F3, F5, F7, F8, F9, F10, Fl l, F12, F13A1, F13B, FGA, FGB, FGG, SERPIND1, CFH, CFI, KLKB1, KNG1, MBL2, CD46, SERPINE1, SERPINA1, PLAT, PLAU, PLAUR, PLG, SERPINF2, PROC, PROS1, MASP1, TFPI, THBD, VWF and/or
- each of A2M, SERPINC1, BDKRB1, BDKRB2, CFB, SERPING1, C1QA, C1QB, C1QC, C1R, CIS, C2, C3, C3AR1, C4A, C4B, C4BPA, C4BPB, C5, C5AR1, C6, C7, C8A, C8B, C9, CD59, CPB2, CR1, CR2, CD55, CFD, F2, F3, F5, F7, F8, F9, F10, Fl l, F12, F13A1, F13B, FGA, FGB, FGG, SERPIND1, CFH, CFI, KLKB1, KNG1, MBL2, CD46, SERPINE1, SERPINA1, PLAT, PLAU, PLAUR, PLG, SERPINF2, PROC, PROS1, MASP1, TFPI, THBD, VWF and/or MASP2 are targeted by PRC2-associated RNA having the SEQ ID NOs displayed in the applicable row of Table
- F2-targeting SEQ ID NOs include SEQ ID NOS: 620037 [F], 620035 [-4027], 790730 [-4752], 4539 [-2059], 341288 [-3278], 4537 [-4639] on the same strand as the coding gene, and SEQ ID NOS: 620036 [F], 790731 [F], 4538 [F], 341286 [F], 341287 [F] on the opposite strand from the coding gene, according to Table 2.
- inhibitory nucleic acids that specifically bind to, or are complementary to, any one of these SEQ ID NOS: that are listed in Table 2 as targeting refGenes A2M, SERPINC1, BDKRB1, BDKRB2, CFB, SERPING1, C1QA, C1QB, C1QC, C1R, CIS, C2, C3, C3AR1, C4A, C4B, C4BPA, C4BPB, C5, C5AR1, C6, C7, C8A, C8B, C9, CD59, CPB2, CR1, CR2, CD55, CFD, F2, F3, F5, F7, F8, F9, F10, Fl l, F12, F13A1, F13B, FGA, FGB, FGG, SERPIND1, CFH, CFI, KLKB 1, K G1, MBL2, CD46, SERPINE1, SERPINA1, PLAT, PLAU, PLAUR, PLG, SERPINF2, PROC, PROS1, MASP1, TF
- inhibitory nucleic acids that specifically bind to, or are
- genes in category 643 ("is decreased in Skeletal disease") are contemplated for use in any of the compositions and methods described herein, including but not limited to use in treating Skeletal disease.
- Inhibitory nucleic acids that specifically bind to, or are complementary to, genes in the categories that are also part of category 644 are contemplated for use in any of the compositions and methods described herein, including but not limited to use in treating cancer..
- inhibitory nucleic acids of the invention may be complementary to, or specifically bind to, Peaks, or non-Peak regions of transcripts disclosed herein, or regions adjacent to Peaks.
- the invention also features inhibitory nucleic acids that bind to the R A sequence between two or more Peaks that correspond to chromosomal coordinates that are near each other, e.g. within 100 bases, 200 bases, 300 bases, 400 bases, 500 bases, lkb, or 2kb, of each other, and that are preferably associated with the same reference gene in Table 2.
- the invention features inhibitory nucleic acids that specifically bind, or are complementary to, a fragment of any of the RNA transcripts of SEQ ID NOS: 1 - 47,407 or 934,762 - 934,S63[mouse transcripts] or 616,429 - 652,255 or 916,210 - 916,625 or 934,864 - 934,968 [human transcripts] or 916,626 to 934,76 ⁇ ⁇ larger region surrounding human Peaks], said fragment about 2000, about 1750, about 1500, about 1250 nucleotides in length, or preferably about 1000, about 750, about 500, about 400, about 300 nucleotides in length, or more preferably about 200, about 150, or about 100 nucleotides in length, wherein the fragment of RNA comprises a stretch of at least five (5) consecutive nucleotides within any of SEQ ID NOS: 47,408 to 616,428 [mouse Peaks] or 652,256 to
- the fragment of RNA comprises at least 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 or 50 consecutive nucleotides within any of SEQ ID NOS: 47,408 to 616,428 [mouse Peaks] or 652,256 to 916,209 [human Peaks], or the reverse complement of any of the cDNA sequences of Appendix I of U.S. Prov. Appl. No. 61/425, 174 filed on December 20, 2010.
- inhibitory nucleic acids that bind to fragments about 2000, about 1750, about 1500, about 1250 nucleotides in length, or preferably about 1000, about 750, about 500, about 400, about 300 nucleotides in length, or more preferably about 200, about 150, or about 100 nucleotides in length, which are:
- the inhibitory nucleic acids are, e.g., about 5 to 40, about 8 to 40, or 10 to 50 bases, or 5 to 50 bases in length. In some
- the inhibitory nucleic acid comprises or consists of a sequence of bases at least 80% or 90% complementary to, e.g., at least 5, 10, 15, 20, 25 or 30 bases of, or up to 30 or 40 bases of, the target RNA (i.e., any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931), or comprises a sequence of bases with up to 3 mismatches (e.g., up to 1, or up to 2 mismatches) over 10, 15, 20, 25 or 30 bases of the target RNA.
- the target RNA i.e., any one of SEQ ID NOs: 1 to 916,209, or 916,626 to 934,931
- up to 3 mismatches e.g., up to 1, or up to 2 mismatches
- the inhibitory nucleic acid can comprise or consist of a sequence of bases at least 80% complementary to at least 10, or 10-30 or 10-40 contiguous bases of the target RNA, or at least 80% complementary to at least 15, or 15-30, or 15-40 contiguous bases of the target RNA, or at least 80% complementary to at least 20, or 20-30, or 20-40 contiguous bases of the target RNA, or at least 80% complementary to at least 25, or 25-30, or 25-40 contiguous bases of the target RNA, or at least 80% complementary to at least 30, or 30-40 contiguous bases of the target RNA, or at least 80% complementary to at least 40 contiguous bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases at least 90% complementary to at least 5, or 5-30 or 5-40 or 8-40 contiguous bases of the target RNA, or at least 90% complementary to at least 10, or 10-30, or 10-40 contiguous bases of the target RNA, or at least 90%complementary to at least 15, or 15-30, or 15-40 contiguous bases of the target RNA, or at least 90%
- the inhibitory nucleic acid can comprise or consist of a sequence of bases fully complementary to at least 5, 10, or 15 contiguous bases of the target RNA. It is understood that some additional non-complementary bases may be included. It is understood that inhibitory nucleic acids that comprise such sequences of bases as described may also comprise other non-complementary bases.
- an inhibitory nucleic acid can be 20 bases in total length but comprise a 15 base portion that is fully complementary to 15 bases of the target RNA.
- an inhibitory nucleic acid can be 20 bases in total length but comprise a 15 base portion that is at least 80% complementary to 15 bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases with up to 3 mismatches over 10 contiguous bases of the target RNA, or up to 3 mismatches over 15 contiguous bases of the target RNA, or up to 3 mismatches over 20 contiguous bases of the target RNA, or up to 3 mismatches over 25 contiguous bases of the target RNA, or up to 3 mismatches over 30 contiguous bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases with up to 2 mismatches over 10 contiguous bases of the target RNA, or up to 2 mismatches over 15 contiguous bases of the target RNA, or up to 2 mismatches over 20 contiguous bases of the target RNA, or up to 2 mismatches over 25 contiguous bases of the target RNA, or up to 2 mismatches over 30 contiguous bases of the target RNA.
- the inhibitory nucleic acid can comprise or consist of a sequence of bases with one mismatch over 10, 15, 20, 25 or 30 contiguous bases of the target RNA.
- the inhibitory nucleic acids may optionally exclude (a) any one or more of the specific inhibitory nucleic acids made or actually disclosed (i.e.
- WO2011/150005 [SEQ ID NOs: 936406 - 936407 and 936433] of which each of the foregoing is incorporated by reference in its entirety herein.
- optionally excluded from the invention are of inhibitory nucleic acids that specifically bind to, or are complementary to, any one or more of the following regions: Nucleotides 1-932 of SEQ ID NO: 935128; Nucleotides 1-1675 of SEQ ID NO: 935306; Nucleotides 1-518 of SEQ ID NO: 935307; Nucleotides 1-759 of SEQ ID NO: 935308; Nucleotides 1-25892 of SEQ ID NO: 935309; Nucleotides 1-279 of SEQ ID NO: 935310; Nucleotides 1-1982 of SEQ ID NO: 935311; Nucleotides 1-789 of SEQ ID NO: 935312; Nucleotides 1-467 of SEQ ID
- the inhibitory nucleic acids will upregulate gene expression and may specifically bind or specifically hybridize or be complementary to the PRC2 -binding RNA that is transcribed from the same strand as a protein coding reference gene.
- the inhibitory nucleic acid may bind to a region of the PRC2-binding RNA, that originates within or overlaps an intron, exon, intron- exon junction, 5' UTR, 3' UTR, a translation initiation region, or a translation termination region of a protein-coding sense-strand of a reference gene (refGene).
- the inhibitory nucleic acids will upregulate gene expression and may specifically bind or specifically hybridize or be complementary to a PRC2 binding RNA that transcribed from the opposite strand (the antisense-strand) of a protein-coding reference gene.
- the inhibitory nucleic acids described herein may be modified, e.g. comprise a modified sugar moiety, a modified internucleoside linkage, a modified nucleotide and/or combinations thereof.
- the inhibitory nucleic acids can exhibit one or more of the following properties: do not induce substantial cleavage or degradation of the target RNA; do not cause substantially complete cleavage or degradation of the target RNA; do not activate the RNAse H pathway; do not activate RISC; do not recruit any Argonaute family protein; are not cleaved by Dicer; do not mediate alternative splicing; are not immune stimulatory; are nuclease resistant; have improved cell uptake compared to unmodified oligonucleotides; are not toxic to cells or mammals; may have improved endosomal exit; do interfere with interaction of IncRNA with PRC2, preferably the Ezh2 subunit but optionally the Suzl2, Eed, RbAp46/48 subunits or accessory factors such as Ja
- the inhibitory nucleic acids may optionally exclude those that bind DNA of a promoter region, as described in Kuwabara et al, US 2005/0226848 or Li et al, US 2010/0210707 or Corey et al, 7,709,456 or Mattick et al, WO 2009/124341, or those that bind DNA of a 3' UTR region, as described in Corey et al, US 2010/0273863.
- Inhibitory nucleic acids that are designed to interact with RNA to modulate gene expression are a distinct subset of base sequences from those that are designed to bind a DNA target (e.g., are complementary to the underlying genomic DNA sequence from which the RNA is transcribed).
- a DNA target e.g., are complementary to the underlying genomic DNA sequence from which the RNA is transcribed.
- This application includes ten (10) compact discs containing a Sequence
- Figure 1 is an exemplary RIP-seq schematic.
- Table 1 displays the SEQ ID NOs of mouse transcripts and mouse Peaks, along with the SEQ ID NOs of the corresponding human transcript and human Peaks.
- Table 2 Intersection of the expanded PRC2 transcriptome, and Peaks generated by overlapping reads in Appendix I, with target genes
- Appendix I (obtained from sequencing cDNA according to Examples 1 -2) represent regions protected from endogenous nucleases during the RIP procedure and thus represent regions of RNA that bind to PRC2.
- Appendix I appears in U.S. Prov. Appln. No. 61/425, 174 filed on December 20, 2010, which is not attached hereto but is incorporated by reference herein in its entirety.
- the Appendix I sequence reads were overlapped to generate longer contiguous regions of sequence referred to herein as a "Peak.”
- the corresponding nucleotide sequences of the mouse Peaks appear in the sequence listing as SEQ ID NOS: 47,408 to 616,428 [mouse Peaks].
- Mouse-to- human LiftOver of the mouse chromosome coordinates and strand of these mouse Peaks was performed in the UCSC genome browser as described herein, to generate orthologous human chromosome coordinates.
- Each corresponding human Peak RNA sequence (i.e., the nucleotide sequence of the human chromosomal coordinates and strand, converted to RNA by replacing T with U) appear in the sequence listing as SEQ ID NOS: 652,256 to 916,209 [human Peaks].
- Columns 1 and 2 display the SEQ ID NO: of the sequence of all of (a) the human PRC2-binding transcripts, (b) the human Peak sequence within the PRC2- binding RNA, (c) the mouse PRC2 -binding transcripts, and (d) the mouse Peak sequence within the PRC2 -binding RNA, which target the NCBI gene (i.e., are intersecting or nearby) shown in Column 3.
- Column 3 shows the NCBI gene name and unique NCBI gene ID number (National Library of Medicine (US), National Center for Biotechnology Information; chapter 19, Entrez Gene: A Directory of Genes, ncbi.nlm.nih.gov/gene/). Human gene names appear as all capitals, while mouse gene names appear with only the first letter capitalized.
- Column 1 displays SEQ ID NOs for "same strand" PRC2-binding RNA that will have the same strand as the reference NCBI gene (for example, if the NCBI gene is transcribed from the minus strand of the chromosome, then the PRC2-binding RNA is also transcribed from the minus strand).
- Column 2 displays SEQ ID NOs for "opposite strand” PRC2 -binding RNA that is transcribed from the opposite strand, or antisense-strand, to the reference NCBI gene.
- SEQ ID NOs. from 1 - 47,407 or 934,762 - 934,863 represent mouse transcripts, while SEQ ID NOs.
- SEQ ID NOs. 916,626 to 934,761 represent a larger approximately 2kb region surrounding human Peaks.
- SEQ ID NOs. from 47,408 to 616,428 represent mouse Peaks, while SEQ ID NOs. 652,256 to 916,209 represent human Peaks.
- Table 3 Categories of PRC2-binding RNA, genes targeted by the RNA, and uses in treatment of disease
- Column 1 shows the NCBI gene name and unique gene ID.
- Column 2 are the categories of functional groups of genes, and the diseases, disorders or conditions that are associated with these genes and can be treated by modulating their expression.
- Column 3 is the description of the gene from NCBI.
- the murine imprinted gene i.e., an intersecting or nearby gene targeted by the PRC2 -binding transcript is shown in column 1.
- Column 1 also shows the chromosome strand of the murine imprinted gene ("+”sign indicates that the gene is transcribed from the top or plus strand, while "-” sign indicates that the PRC2 -binding transcript is transcribed from the bottom or minus strand of the chromosome).
- chromosome localization and nucleotide coordinates in mm9 of the PRC2-binding transcript are shown in column 2, as well as a "+"sign or "-" sign that indicates whether the PRC2 -binding transcript is transcribed from the top strand (plus strand hit) or bottom strand (minus strand hit) of the chromosome.
- Column 3 displays the SEQ ID NO: of the mouse PRC2 -binding transcript (i.e., the nucleotide sequence transcribed from the mouse chromosomal coordinates and strand of column 2, converted to RNA by replacing T with U).
- the PRC2-interacting transcript When the PRC2-interacting transcript is transcribed from the opposite strand compared to the imprinted reference gene in column 1, that implies that the PRC2 -interacting RNA is complementary, or antisense-strand ("opposite strand") in orientation, to the reference imprinted gene. Note that the PRC2-binding transcript need not be the reference imprinted gene itself, but a distinct transcript that overlaps in position.
- AppendIX I of U.S. provisional application 61/425,174 filed on December 20, 2010, the entirety of which is incorporated by reference herein, is a listing of the complete RIP-seq dataset, showing all of the reads in the dataset. Appendix I is not attached hereto. The sequence reads in Appendix I come directly off the Illumina GA- II genome analyzer and are in an orientation that is the reverse complement of the PRC2 -binding transcript. Appendix I is a filtered subset of all of the reads after bioinformatic filtering removed adaptor/primer dimers, mitochondrial RNA, rRNA, homopolymers, reads with indeterminate nucleotides, and truncated reads ( ⁇ 15nt).
- the RIP-seq technology described herein was used to capture a genome-wide pool of long transcripts (>200 nt) that bind with the PRC2 complex, directly or indirectly.
- the expanded PRC2 transcriptome described herein consists of >57,000 RNAs in mouse ES cells. Transcriptome characterization has identified classes of medically significant targets. Many if not all of the mouse PRC2-transcripts have direct counterparts in the human epigenome.
- RNAs directly interacts with Polycomb proteins in vivo and, in many cases, the interacting subunit is Ezh2.
- RNA especially Ezh2 and Suzl2, both of which have nucleic-acid binding motifs
- RNA cofactors for Ezh2 the bait used for RIP-seq, specifically as part of the PRC2 complex.
- Ezh2 is only present in Polycomb complexes, as biochemical purification using tagged Ezh2 identifies only Polycomb- related peptides (Li et al, 2010) and knocking out other subunits of PRC2 results in rapid degradation of Ezh2 (Pasini et al., 2004; Montgomery et al., 2005; Schoeftner et al, 2006).
- RNAs in the PRC2 transcriptome may be utilized by RNAs in the PRC2 transcriptome. While it has been postulated that HOTAIR works in trans (Rinn et al, 2007; Gupta et al), the large number of antisense transcripts in the transcriptome suggests that many, like Tsix, may function by directing PRC2 to overlapping or linked coding loci in cis.
- RNA cofactors are a general feature of Polycomb regulation and that inhibitory nucleic acids as described herein that target RNA in the PRC2 transcriptome can successfully up-regulate gene expression, presumably by inhibiting PRC2-associated repression.
- Genes in cis in either antisense-strand orientation or same strand orientation, and extending lkb or more, e.g. 5kb, from the location of the PRC2-binding RNA, can be regulated.
- chromatin modifiers such as PRC2 play a central role in maintaining stem cell pluripotency and in cancer, a genome-wide profile of regulatory RNAs will be a valuable resource in the quest to diagnose and treat disease.
- RIP-seq - Methods of Producing Long Non-Coding RNAs Described herein are methods for producing libraries of IncRNAs. These methods were used to identify RNAs that bind the Ezh2 portion of the PRC2 complex, but does not exclude contacts with other PRC2 subunits or associated proteins. In some embodiments, the methods include the steps shown in Fig. 1 ; one of skill in the art will appreciate that other techniques can be substituted for those shown.
- the methods include providing a sample comprising nuclear ribonucleic acids ("nRNAs"), e.g., a sample comprising nuclear lysate, e.g., comprising nRNAs bound to nuclear proteins; contacting the sample with an agent, e.g., an antibody, that binds specifically to a nuclear protein or protein complex such as PRC2.
- nRNAs nuclear ribonucleic acids
- an agent e.g., an antibody
- the methods are applied under conditions sufficient to form complexes between the agent and the protein, and include some or all of the following: isolating the complexes; synthesizing DNA complementary to the nRNAs to provide an initial population of cDNAs; PCR-amplifying, if necessary, using strand-specific primers; purifying the initial population of cDNAs to obtain a purified population of cDNAs that are at least 20 nucleotides (nt) in length; and high- throughput sequencing the purified population of cDNAs. Homopolymer reads are filtered, and reads matching the mitochondrial genome and ribosomal RNAs are excluded from all subsequent analyses.
- Reads that align to a reference genome with ⁇ 1 mismatch are retained, excluding homopolymers, reads that align to the mitochondrial genome, and ribosomal RNAs.
- High probability PRC2 -interacting transcripts are then called based on criteria that reads were significantly enriched in the wildtype library versus control library (such as a protein-null library or library made from an IgG pulldown done in parallel) for any given transcript. For example, under one set of criteria published in Zhao et al, 2010, the transcripts were enriched 3: 1 in the wildtype library over the Ezh2-null library, and each transcript had an RPKM minimum of 0.4. The criteria can be adjusted up or down based on empirical control data suggesting what cutoffs could be reasonably used.
- RNA-protein complexes are then immunoprecipitated with agarose beads, magnetic beads, or any other platform in solution or on a solid matrix (e.g., columns, microfluidic devices). RNAs are extracted using standard techniques.
- asymmetric primers are used to generate cDNA from the RNA template, in which the first adaptor (adaptor 1) to make the first strand cDNA contains a random multimer sequence (such as random hexamers) at the 3' end.
- a reverse transcriptase is used to create the first strand.
- a distinct second adaptor is used to create the second strand.
- Superscript II it will add non-template CCC 3' overhangs, which can then be used to hybridize to a second adaptor containing GGG at the 3' end, which anneal to the non-template CCC overhangs.
- RNAs or cDNAs of desired sizes are excised after separation by gel electrophoresis (e.g., on a Nu-Sieve agarose gel or in an acrylamide gel) or other methods of purification, such as in a microfluidic device or in standard biochemical columns.
- the present invention includes the individual IncRNAs described herein, as well as libraries of IncRNAs produced by methods described herein.
- the libraries are in solution, or are lyophilized.
- the libraries are bound to a substrate, e.g., wherein each member of the library is bound to an individually addressable member, e.g., an individual area on an array (e.g., a microarray), or a bead.
- the PRC2-interacting RNA transcript although non- coding, may include a protein-coding sequence of bases if it is a distinct transcript that overlaps in position with a protein-coding reference gene (e.g. the gene whose expression is modulated in cis).
- a IncRNA includes a nucleotide sequence that is at least about 85% or more homologous or identical to the entire length of a IncRNA sequence shown herein, e.g., in any of Tables 1-4, or a fragment comprising at least 20 nt thereof (e.g., at least 25, 30, 35, 40, 50, 60, 70, 80, 90, or 100 nt thereof, e.g., at least 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 50% or more of the full length IncRNA).
- the nucleotide sequence is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or 100% homologous or identical to a IncRNA sequence shown herein. In some embodiments, the nucleotide sequence is at least about 85%, e.g., is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or 100% homologous or identical to a IncRNA sequence described herein, in a fragment thereof or a region that is much more conserved, such as Repeat A, but has lower sequence identity outside that region.
- LncRNAs may be functionally conserved without being highly conserved at the level of overall nucleotide identity. For example, mouse Xist shows only 76% overall nucleotide identity with human XIST using sliding 21 -bp windows, or an overall sequence identity of only 60%. However, within specific functional domains, such as Repeat A, the degree of conservation can be >70% between different mammalian species. The crucial motif in Repeat A is the secondary structures formed by the repeat. A IncRNA interacting with PRC2 may therefore be similarly low in overall conservation but still have conservation in secondary structure within specific domains of the RNA, and thereby demonstrate functional conservation with respect to recruitment of PRC2.
- the sequences are aligned for optimal comparison purposes (e.g., gaps can be introduced in one or both of a first and a second amino acid or nucleic acid sequence for optimal alignment and non-homologous sequences can be disregarded for comparison purposes).
- the length of a reference sequence aligned for comparison purposes is at least 80% of the length of the reference sequence, and in some embodiments is at least 90% or 100%.
- the nucleotides at corresponding amino acid positions or nucleotide positions are then compared.
- nucleic acid “identity” is equivalent to nucleic acid “homology”
- percent identity between the two sequences is a function of the number of identical positions shared by the sequences, taking into account the number of gaps, and the length of each gap, which need to be introduced for optimal alignment of the two sequences.
- the comparison of sequences and determination of percent identity between two sequences can be accomplished using a Blossum 62 scoring matrix with a gap penalty of 12, a gap extend penalty of 4, and a frameshift gap penalty of 5.
- IncRNAs are several potential uses for the IncRNAs described herein in the expanded PRC2 transcriptome: The RNAs themselves, or antagomirs and small molecules designed against them, can be utilized to modulate expression (either up or down) of Polycomb target genes.
- long ncRNAs can include endogenous cellular RNAs that are greater than 60 nt in length, e.g., greater than 100 nt, e.g., greater than 200 nt, have no positive-strand open reading frames greater than 100 amino acids in length, are identified as IncRNAs by experimental evidence, and are distinct from known (smaller) functional-RNA classes (including but not limited to ribosomal, transfer, and small nuclear/nucleolar RNAs, siRNA, piRNA, and miRNA).
- endogenous cellular RNAs that are greater than 60 nt in length, e.g., greater than 100 nt, e.g., greater than 200 nt, have no positive-strand open reading frames greater than 100 amino acids in length, are identified as IncRNAs by experimental evidence, and are distinct from known (smaller) functional-RNA classes (including but not limited to ribosomal, transfer, and small nuclear/nucleolar RNAs, siRNA, piRNA, and miRNA).
- IncRNAs Known classes of IncRNAs include large intergenic non-coding RNAs (lincRNAs, see, e.g., Guttman et al, Nature. 2009 Mar 12;458(7235):223-7. Epub 2009 Feb 1, which describes over a thousand exemplary highly conserved large non- coding RNAs in mammals; and Khalil et al, PNAS 106(28)11675-1 1680 (2009)); promoter associated short RNAs (PASRs; see, e.g., Seila et al, Science. 2008 Dec 19;322(5909): 1849-51.
- LincRNAs large intergenic non-coding RNAs
- RNAs that bind chromatin modifiers such as PRC2 and LSD1 (see, e.g., Tsai et al., Science. 2010 Aug 6;329(5992):689-93. Epub 2010 Jul 8; and Zhao et al, Science. 2008 Oct 31;322(5902):750-6).
- Exemplary IncRNAs include XIST, TSIX, MALAT1, RNCR2, and HOTAIR.
- the sequences for more than 17,000 long human ncRNAs can be found in the NCodeTM Long ncRNA Database on the Invitrogen website. Additional long ncRNAs can be identified using, e.g., manual published literature, Functional Annotation of Mouse (FANTOM3) project, Human Full-length cDNA Annotation invitational (H- invitational) project, antisense ncRNAs from cDNA and EST database for mouse and human using a computation pipeline (Zhang et al, Nucl. Acids Res. 35 (suppl 1): D156-D161 (2006); Engstrom et al., PLoS Genet.
- the IncRNAs described herein can be used to modulate gene expression in a cell, e.g., a cancer cell, a stem cell, or other normal cell types for gene or epigenetic therapy.
- the cells can be in vitro, including ex vivo, or in vivo (e.g., in a subject who has cancer, e.g., a tumor).
- the methods described herein can be used for modulating expression of oncogenes and tumor suppressors in cells, e.g., cancer cells.
- the methods include introducing into the cell a long non-coding RNA, including a PRC2-binding fragment thereof, that regulates the oncogene set forth in Table 2, imprinted genes in Table 4, and/or other growth- promoting genes in Table 2.
- the methods include introducing into the cell an inhibitory nucleic acid or small molecule that specifically binds, or is complementary, to a long non-coding RNA targeting a tumor suppressor as set forth in Table 2, imprinted genes in Table 4, and/or other growth-promoting genes in Table 2, e.g., in subjects with cancer, e.g., lung adenocarcinoma patients.
- the methods include introducing into the cell an inhibitory nucleic acid that specifically binds, or is complementary, to a long non-coding RNA targeting an imprinted gene as set forth in Table 4.
- a nucleic acid that binds "specifically” binds primarily to the target IncRNA or related lncRNAs to inhibit regulatory function of the IncRNA but not of other non-target RNAs.
- the specificity of the nucleic acid interaction thus refers to its function (e.g. inhibiting the PRC2-associated repression of gene expression) rather than its hybridization capacity.
- Inhibitory nucleic acids may exhibit nonspecific binding to other sites in the genome or other mRNAs, without interfering with binding of other regulatory proteins and without causing degradation of the non-specifically-bound RNA. Thus this nonspecific binding does not significantly affect function of other non-target RNAs and results in no significant adverse effects.
- compositions comprising an IncRNA (e.g., a IncRNA that inhibits a cancer-promoting oncogene or imprinted gene) or a PRC2- binding fragment thereof and/or an inhibitory nucleic acid that binds to a long non- coding RNA (e.g., an inhibitory nucleic acid that binds to a IncRNA that inhibits a tumor suppressor, or cancer-suppressing gene, or imprinted gene and/or other growth- suppressing genes in any of Tables 1-4). Examples of genes involved in cancer and categories of cancer are shown in Table 3 or 4.
- Examples of cellular proliferative and/or differentiative disorders include cancer, e.g., carcinoma, sarcoma, metastatic disorders or hematopoietic neoplastic disorders, e.g., leukemias.
- a metastatic tumor can arise from a multitude of primary tumor types, including but not limited to those of prostate, colon, lung, breast and liver origin.
- treating includes “prophylactic treatment” which means reducing the incidence of or preventing (or reducing risk of) a sign or symptom of a disease in a patient at risk for the disease, and “therapeutic treatment”, which means reducing signs or symptoms of a disease, reducing progression of a disease, reducing severity of a disease, in a patient diagnosed with the disease.
- treating includes inhibiting tumor cell proliferation, increasing tumor cell death or killing, inhibiting rate of tumor cell growth or metastasis, reducing size of tumors, reducing number of tumors, reducing number of metastases, increasing 1-year or 5- year survival rate.
- cancer refers to cells having the capacity for autonomous growth, i.e., an abnormal state or condition characterized by rapidly proliferating cell growth.
- hyperproliferative and neoplastic disease states may be categorized as pathologic, i.e., characterizing or constituting a disease state, or may be categorized as non-pathologic, i.e., a deviation from normal but not associated with a disease state.
- pathologic i.e., characterizing or constituting a disease state
- non-pathologic i.e., a deviation from normal but not associated with a disease state.
- the term is meant to include all types of cancerous growths or oncogenic processes, metastatic tissues or malignantly transformed cells, tissues, or organs, irrespective of histopathologic type or stage of invasiveness.
- Pathologic hyperproliferative occur in disease states characterized by malignant tumor growth. Examples of non-pathologic
- hyperproliferative cells include proliferation of cells associated with wound repair.
- cancer or “neoplasms” include malignancies of the various organ systems, such as affecting lung (e.g. small cell, non-small cell, squamous, adenocarcinoma), breast, thyroid, lymphoid, gastrointestinal, genito-urinary tract, kidney, bladder, liver (e.g.
- hepatocellular cancer pancreas, ovary, cervix, endometrium, uterine, prostate, brain, as well as adenocarcinomas which include malignancies such as most colon cancers, colorectal cancer, renal-cell carcinoma, prostate cancer and/or testicular tumors, non-small cell carcinoma of the lung, cancer of the small intestine and cancer of the esophagus.
- malignancies such as most colon cancers, colorectal cancer, renal-cell carcinoma, prostate cancer and/or testicular tumors, non-small cell carcinoma of the lung, cancer of the small intestine and cancer of the esophagus.
- carcinoma is art recognized and refers to malignancies of epithelial or endocrine tissues including respiratory system carcinomas,
- the disease is renal carcinoma or melanoma.
- Exemplary carcinomas include those forming from tissue of the cervix, lung, prostate, breast, head and neck, colon and ovary.
- the term also includes carcinosarcomas, e.g., which include malignant tumors composed of carcinomatous and sarcomatous tissues.
- An "adenocarcinoma" refers to a carcinoma derived from glandular tissue or in which the tumor cells form recognizable glandular structures.
- hematopoietic neoplastic disorders includes diseases involving hyperplastic/neoplastic cells of hematopoietic origin, e.g., arising from myeloid, lymphoid or erythroid lineages, or precursor cells thereof.
- the diseases arise from poorly differentiated acute leukemias, e.g., erythroblastic leukemia and acute megakaryoblastic leukemia.
- myeloid disorders include, but are not limited to, acute promyeloid leukemia (APML), acute myelogenous leukemia (AML) and chronic myelogenous leukemia (CML) (reviewed in Vaickus, L. (1991) Crit Rev. in Oncol. /Hemotol. 1 1 :267-97); lymphoid malignancies include, but are not limited to acute lymphoblastic leukemia (ALL) which includes B-lineage ALL and T-lineage ALL, chronic lymphocytic leukemia (CLL), prolymphocyte leukemia (PLL), hairy cell leukemia (HLL) and
- ALL acute lymphoblastic leukemia
- ALL chronic lymphocytic leukemia
- PLL prolymphocyte leukemia
- HLL hairy cell leukemia
- WM Waldenstrom's macroglobulinemia
- Additional forms of malignant lymphomas include, but are not limited to non-Hodgkin lymphoma and variants thereof, peripheral T cell lymphomas, adult T cell leukemia/lymphoma (ATL), cutaneous T- cell lymphoma (CTCL), large granular lymphocytic leukemia (LGF), Hodgkin's disease and Reed-Sternberg disease.
- cancers that can be treated using the methods described herein are listed in the categories herein or in Table 3, for example, and include, but are not limited to: breast, lung, prostate, CNS (e.g., glioma), salivary gland, prostate, ovarian, and leukemias (e.g., ALL, CML, or AML). Associations of these genes with a particular cancer are known in the art, e.g., as described in Futreal et al, Nat Rev Cancer. 2004;4; 177-83; and The COSMIC (Catalogue of Somatic Mutations in Cancer) database and website, Bamford et al, Br J Cancer.
- CNS e.g., glioma
- salivary gland e.g., ALL, CML, or AML
- leukemias e.g., ALL, CML, or AML.
- the methods described herein can be used for modulating (e.g., enhancing or decreasing) pluripotency of a stem cell and to direct stem cells down specific differentiation pathways to make endoderm, mesoderm, ectoderm, and their developmental derivatives.
- the methods include introducing into the cell an inhibitory nucleic acid that specifically binds to, or is complementary to, a long non-coding RNA as set forth in any of Tables 1-4.
- the methods include introducing into the cell a long non-coding RNA as set forth in any of Tables 1-4.
- Stem cells useful in the methods described herein include adult stem cells (e.g., adult stem cells obtained from the inner ear, bone marrow, mesenchyme, skin, fat, liver, muscle, or blood of a subject, e.g., the subject to be treated); embryonic stem cells, or stem cells obtained from a placenta or umbilical cord; progenitor cells (e.g., progenitor cells derived from the inner ear, bone marrow, mesenchyme, skin, fat, liver, muscle, or blood); and induced pluripotent stem cells (e.g., iPS cells).
- adult stem cells e.g., adult stem cells obtained from the inner ear, bone marrow, mesenchyme, skin, fat, liver, muscle, or blood
- embryonic stem cells, or stem cells obtained from a placenta or umbilical cord e.g., progenitor cells derived from the inner ear, bone marrow, mesenchyme, skin, fat
- the methods described herein include administering a composition, e.g., a sterile composition, comprising an inhibitory nucleic acid that is complementary to an IncRNA described herein, e.g., as set forth in any of Tables 1-4, or SEQ ID NOS: 1 to 916,209, or 916,626 to 934,931.
- Inhibitory nucleic acids for use in practicing the methods described herein can be an antisense or small interfering RNA, including but not limited to an shRNA or siRNA.
- the inhibitory nucleic acid is a modified nucleic acid polymer (e.g., a locked nucleic acid (LNA) molecule).
- LNA locked nucleic acid
- Inhibitory nucleic acids have been employed as therapeutic moieties in the treatment of disease states in animals, including humans. Inhibitory nucleic acids can be useful therapeutic modalities that can be configured to be useful in treatment regimes for the treatment of cells, tissues and animals, especially humans.
- an animal preferably a human, suspected of having cancer is treated by administering an IncRNA or inhibitory nucleic acid in accordance with this invention.
- the methods comprise the step of administering to the animal in need of treatment, a therapeutically effective amount of an IncRNA or inhibitory nucleic acid as described herein.
- Inhibitory nucleic acids useful in the present methods and compositions include antisense oligonucleotides, ribozymes, external guide sequence (EGS) oligonucleotides, siRNA compounds, single- or double-stranded RNA interference (RNAi) compounds such as siRNA compounds, molecules comprising modified bases, locked nucleic acid molecules (LNA molecules), antagomirs, peptide nucleic acid molecules (PNA molecules), and other oligomeric compounds or oligonucleotide mimetics which hybridize to at least a portion of the target nucleic acid and modulate its function.
- RNAi RNA interference
- the inhibitory nucleic acids include antisense RNA, antisense DNA, chimeric antisense oligonucleotides, antisense oligonucleotides comprising modified linkages, interference RNA (RNAi), short interfering RNA (siRNA); a micro, interfering RNA (miRNA); a small, temporal RNA (stRNA); or a short, hairpin RNA (shRNA); small RNA-induced gene activation (RNAa); small activating RNAs (saRNAs), or combinations thereof.
- RNAi interference RNA
- siRNA short interfering RNA
- miRNA micro, interfering RNA
- shRNA small, temporal RNA
- shRNA short, hairpin RNA
- small RNA-induced gene activation RNAa
- small activating RNAs saRNAs
- the inhibitory nucleic acids are 10 to 50, 13 to 50, or 13 to 30 nucleotides in length.
- One having ordinary skill in the art will appreciate that this embodies oligonucleotides having antisense (complementary) portions of 10, 1 1, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50 nucleotides in length, or any range therewithin.
- inhibitory nucleic acids may be included in such inhibitory nucleic acids; for example, an inhibitory nucleic acid 30 nucleotides in length may have a portion of 15 bases that is complementary to the targeted RNA.
- the oligonucleotides are 15 nucleotides in length.
- the antisense or oligonucleotide compounds of the invention are 12 or 13 to 30 nucleotides in length.
- the inhibitory nucleic acid comprises one or more modifications comprising: a modified sugar moiety, and/or a modified internucleoside linkage, and/or a modified nucleotide and/or combinations thereof. It is not necessary for all positions in a given oligonucleotide to be uniformly modified, and in fact more than one of the modifications described herein may be incorporated in a single oligonucleotide.
- oligonucleotide or even at within a single nucleoside within an oligonucleotide.
- the inhibitory nucleic acids are chimeric
- oligonucleotides that contain two or more chemically distinct regions, each made up of at least one nucleotide. These oligonucleotides typically contain at least one region of modified nucleotides that confers one or more beneficial properties (such as, for example, increased nuclease resistance, increased uptake into cells, increased binding affinity for the target) and a region that is a substrate for enzymes capable of cleaving RNA:DNA or RNA:RNA hybrids.
- Chimeric inhibitory nucleic acids of the invention may be formed as composite structures of two or more oligonucleotides, modified oligonucleotides, oligonucleosides and/or oligonucleotide mimetics as described above.
- Such compounds have also been referred to in the art as hybrids or gapmers.
- Representative United States patents that teach the preparation of such hybrid structures comprise, but are not limited to, US patent nos. 5,013,830; 5, 149,797; 5, 220,007; 5,256,775; 5,366,878; 5,403,71 1; 5,491, 133; 5,565,350; 5,623,065;
- the inhibitory nucleic acid comprises at least one nucleotide modified at the 2' position of the sugar, most preferably a 2'-0-alkyl, 2'-0- alkyl-O-alkyl or 2'-fluoro-modified nucleotide.
- RNA modifications include 2'-fluoro, 2'-amino and 2' O-methyl modifications on the ribose of pyrimidines, abasic residues or an inverted base at the 3' end of the RNA. Such modifications are routinely incorporated into oligonucleotides and these
- oligonucleotides have been shown to have a higher Tm (i.e., higher target binding affinity) than; 2'-deoxyoligonucleotides against a given target.
- modified oligonucleotides include those comprising modified backbones, for example, phosphorothioates, phosphotriesters, methyl phosphonates, short chain alkyl or cycloalkyl intersugar linkages or short chain heteroatomic or heterocyclic intersugar linkages. Most preferred are oligonucleotides with phosphorothioate backbones and those with heteroatom backbones, particularly CH 2 -NH-O-CH 2 ,
- CH, ⁇ N(CH 3 ) ⁇ 0 ⁇ CH 2 (known as a methylene(methylimino) or MMI backbone], CH 2 -O-N (CH 3 )-CH 2 , CH 2 -N (CH 3 )-N (CH 3 )-CH 2 and O-N (CH 3 )- CH 2 -CH 2 backbones, wherein the native phosphodiester backbone is represented as O- P— O- CH,); amide backbones (see De Mesmaeker et al. Ace. Chem. Res. 1995, 28:366- 374); morpholino backbone structures (see Summerton and Weller, U.S. Pat. No.
- PNA peptide nucleic acid
- Phosphorus- containing linkages include, but are not limited to, phosphorothioates, chiral phosphorothioates, phosphorodithioates, phosphotriesters,
- aminoalkylphosphotriesters methyl and other alkyl phosphonates comprising 3'alkylene phosphonates and chiral phosphonates, phosphinates, phosphoramidates comprising 3 '-amino phosphoramidate and aminoalkylphosphoramidates,
- thionophosphoramidates having normal 3'-5' linkages, 2'-5' linked analogs of these, and those having inverted polarity wherein the adjacent pairs of nucleoside units are linked 3'-5' to 5'-3' or 2'-5' to 5'-2'; see US patent nos. 3,687,808; 4,469,863;
- Morpholino-based oligomeric compounds are described in Dwaine A. Braasch and David R. Corey, Biochemistry, 2002, 41(14), 4503-4510); Genesis, volume 30, issue 3, 2001 ; Heasman, J., Dev. Biol., 2002, 243, 209-214; Nasevicius et al., Nat. Genet., 2000, 26, 216-220; Lacerra et al, Proc. Natl. Acad. Sci., 2000, 97, 9591-9596; and U.S. Pat. No. 5,034,506, issued Jul. 23, 1991.
- the morpholino-based oligomeric compound is a phosphorodiamidate morpholino oligomer (PMO) (e.g., as described in Iverson, Curr. Opin. Mol. Ther., 3:235-238, 2001; and Wang et al, J. Gene Med., 12:354-364, 2010; the disclosures of which are incorporated herein by reference in their entireties).
- PMO phosphorodiamidate morpholino oligomer
- Cyclohexenyl nucleic acid oligonucleotide mimetics are described in Wang et al, J. Am. Chem. Soc, 2000, 122, 8595-8602.
- Modified oligonucleotide backbones that do not include a phosphorus atom therein have backbones that are formed by short chain alkyl or cycloalkyl
- internucleoside linkages mixed heteroatom and alkyl or cycloalkyl internucleoside linkages, or one or more short chain heteroatomic or heterocyclic internucleoside linkages.
- These comprise those having morpholino linkages (formed in part from the sugar portion of a nucleoside); siloxane backbones; sulfide, sulfoxide and sulfone backbones; formacetyl and thioformacetyl backbones; methylene formacetyl and thioformacetyl backbones; alkene containing backbones; sulfamate backbones;
- Modified oligonucleotides are also known that include oligonucleotides that are based on or constructed from arabinonucleotide or modified arabinonucleotide residues.
- Arabinonucleosides are stereoisomers of ribonucleosides, differing only in the configuration at the 2'-position of the sugar ring.
- a 2'- arabino modification is 2'-F arabino.
- oligonucleotide is 2'-fluoro-D-arabinonucleic acid (FANA) (as described in, for example, Lon et al, Biochem., 41 :3457-3467, 2002 and Min et al, Bioorg. Med. Chem. Lett., 12:2651-2654, 2002; the disclosures of which are incorporated herein by reference in their entireties). Similar modifications can also be made at other positions on the sugar, particularly the 3' position of the sugar on a 3' terminal nucleoside or in 2'-5' linked oligonucleotides and the 5' position of 5' terminal nucleotide.
- FANA 2'-fluoro-D-arabinonucleic acid
- WO 99/67378 discloses arabinonucleic acids (ANA) oligomers and their analogues for improved sequence specific inhibition of gene expression via association to complementary messenger RNA.
- ENAs ethylene-bridged nucleic acids
- Preferred ENAs include, but are not limited to, 2'-0,4'-C-ethylene -bridged nucleic acids.
- LNAs examples include compounds of the following formula.
- -CH CH-, where R is selected from hydrogen and Ci-4-alkyl; Z and Z* are independently selected among an internucleoside linkage, a terminal group or a protecting group; B constitutes a natural or non-natural nucleotide base moiety; and the asymmetric groups may be found in either orientation.
- the LNA used in the oligomer of the invention comprises at least one LNA unit according any of the formulas
- Y is -0-, -S-, -NH-, or N(R ); Z and Z* are independently selected among an internucleoside linkage, a terminal group or a protecting group; B constitutes a natural or non-natural nucleotide base moiety, and RH is selected from hydrogen and Ci-4-alkyl.
- the Locked Nucleic Acid (LNA) used in the oligomeric compound, such as an antisense oligonucleotide, of the invention comprises at least one nucleotide comprises a Locked Nucleic Acid (LNA) unit according any of the formulas shown in Scheme 2 of PCT/DK2006/000512.
- LNA Locked Nucleic Acid
- the LNA used in the oligomer of the invention comprises internucleoside linkages selected from -0-P(O) 2 -O-, -0-P(0,S)-0-, -0-P(S) 2 -O-, -S- P(0) 2 -0-, -S-P(0,S)-0-, -S-P(S) 2 -0-, -0-P(O) 2 -S-, -0-P(0,S)-S-, -S-P(0) 2 -S-, -o- PO(R H )-0-, 0-PO(OCH 3 )-0-, -0-PO(NR H )-0-, -0-PO(OCH 2 CH 2 S-R)-O-, -O- PO(BH 3 )-0-, -0-PO(NHR H )-0-, -0-P(0) 2 -NR H -, -NR H -P(0) 2 -0-, -NR H -CO-
- thio-LNA comprises a locked nucleotide in which at least one of X or Y in the general formula above is selected from S or -CH2-S-.
- Thio-LNA can be in both beta-D and alpha-L-configuration.
- amino-LNA comprises a locked nucleotide in which at least one of X or Y in the general formula above is selected from -N(H)-, N(R)-, ⁇ 3 ⁇ 4- ⁇ ( ⁇ )-, and - C]3 ⁇ 4-N(R)- where R is selected from hydrogen and Ci-4-alkyl.
- Amino-LNA can be in both beta-D and alpha-L-configuration.
- Oxy-LNA comprises a locked nucleotide in which at least one of X or Y in the general formula above represents -O- or -CH 2 -O-. Oxy-LNA can be in both beta-D and alpha-L-configuration.
- ena-LNA comprises a locked nucleotide in which Y in the general formula above is -CH 2 -0- (where the oxygen atom of -CH 2 -0- is attached to the 2'- position relative to the base B).
- LNAs are described in additional detail below.
- One or more substituted sugar moieties can also be included, e.g., one of the following at the 2' position: OH, SH, SCH 3 , F, OCN, OCH 3 OCH 3 , OCH 3 0(CH 2 )n CH 3 , 0(CH 2 )n NH 2 or 0(CH 2 )n CH 3 where n is from 1 to about 10; Ci to CIO lower alkyl, alkoxyalkoxy, substituted lower alkyl, alkaryl or aralkyl; CI; Br; CN; CF3 ; OCF3; 0-, S-, or N-alkyl; 0-, S-, or -alkenyl; SOCH3; S02 CH3; ON02; N02; N3; NH2; heterocycloalkyl; heterocycloalkaryl; aminoalkylamino; polyalkylamino;
- a preferred modification includes 2'- methoxyethoxy [2'-0-CH 2 CH 2 OCH 3 , also known as 2'-0-(2-methoxyethyl)] (Martin et al, Helv. Chim. Acta, 1995, 78, 486).
- Oligonucleotides may also have sugar mimetics such as cyclobutyls in place of the pentofuranosyl group.
- Inhibitory nucleic acids can also include, additionally or alternatively, nucleobase (often referred to in the art simply as "base”) modifications or
- nucleobases include adenine (A), guanine (G), thymine (T), cytosine (C) and uracil (U).
- Modified nucleobases include nucleobases found only infrequently or transiently in natural nucleic acids, e.g., hypoxanthine, 6-methyladenine, 5-Me pyrimidines, particularly 5-methylcytosine (also referred to as 5-methyl-2' deoxycytosine and often referred to in the art as 5-Me- C), 5-hydroxymethylcytosine (HMC), glycosyl HMC and gentobiosyl HMC, isocytosine, pseudoisocytosine, as well as synthetic nucleobases, e.g., 2- aminoadenine, 2- (methylamino)adenine, 2-(imidazolylalkyl)adenine, 2- (aminoalklyamino)adenine or
- both a sugar and an internucleoside linkage, i.e., the backbone, of the nucleotide units are replaced with novel groups.
- the base units are maintained for hybridization with an appropriate nucleic acid target compound.
- an oligomeric compound an oligonucleotide mimetic that has been shown to have excellent hybridization properties, is referred to as a peptide nucleic acid (PNA).
- PNA peptide nucleic acid
- the sugar-backbone of an oligonucleotide is replaced with an amide containing backbone, for example, an aminoethylglycine backbone.
- the nucleobases are retained and are bound directly or indirectly to aza nitrogen atoms of the amide portion of the backbone.
- Representative United States patents that teach the preparation of PNA compounds include, but are not limited to, US patent nos.
- Inhibitory nucleic acids can also include one or more nucleobase (often referred to in the art simply as “base”) modifications or substitutions.
- nucleobases comprise the purine bases adenine (A) and guanine (G), and the pyrimidine bases thymine (T), cytosine (C) and uracil (U).
- Modified nucleobases comprise other synthetic and natural nucleobases such as 5- methylcytosine (5-me-C), 5-hydroxymethyl cytosine, xanthine, hypoxanthine, 2- aminoadenine, 6-methyl and other alkyl derivatives of adenine and guanine, 2-propyl and other alkyl derivatives of adenine and guanine, 2-thiouracil, 2-thiothymine and 2- thiocytosine, 5-halouracil and cytosine, 5-propynyl uracil and cytosine, 6-azo uracil, cytosine and thymine, 5-uracil (pseudo-uracil), 4-thiouracil, 8-halo, 8-amino, 8-thiol, 8- thioalkyl, 8-hydroxyl and other 8-substituted adenines and guanines, 5-halo particularly 5- bromo, 5-trifluoromethyl and other 5-sub
- nucleobases comprise those disclosed in United States Patent No. 3,687,808, those disclosed in "The Concise Encyclopedia of Polymer Science And Engineering", pages 858-859, Kroschwitz, ed. John Wiley & Sons, 1990;, those disclosed by Englisch et al, Angewandle Chemie, International Edition, 1991, 30, page 613, and those disclosed by Sanghvi, Chapter 15, Antisense Research and Applications," pages 289- 302, Crooke, and Lebleu, eds., CRC Press, 1993. Certain of these nucleobases are particularly useful for increasing the binding affinity of the oligomeric compounds of the invention.
- 5-substituted pyrimidines 6- azapyrimidines and N-2, N-6 and 0-6 substituted purines, comprising 2- aminopropyladenine, 5-propynyluracil and 5- propynylcytosine.
- 5-methylcytosine substitutions have been shown to increase nucleic acid duplex stability by 0.6- 1.2 ⁇ 0>C (Sanghvi, et al, eds, "Antisense Research and Applications," CRC Press, Boca Raton, 1993, pp. 276-278) and are presently preferred base substitutions, even more particularly when combined with 2'-0-methoxyethyl sugar modifications.
- the inhibitory nucleic acids are chemically linked to one or more moieties or conjugates that enhance the activity, cellular distribution, or cellular uptake of the oligonucleotide.
- one or more inhibitory nucleic acids, of the same or different types can be conjugated to each other; or inhibitory nucleic acids can be conjugated to targeting moieties with enhanced specificity for a cell type or tissue type.
- moieties include, but are not limited to, lipid moieties such as a cholesterol moiety (Letsinger et al., Proc. Natl. Acad. Sci. USA, 1989, 86, 6553-6556), cholic acid (Manoharan et al, Bioorg. Med. Chem.
- a thioether e.g., hexyl-S- tritylthiol (Manoharan et al, Ann. N. Y. Acad. Sci., 1992, 660, 306-309; Manoharan et al, Bioorg. Med. Chem. Let, 1993, 3, 2765-2770), a thiocholesterol (Oberhauser et al, Nucl.
- Acids Res., 1992, 20, 533-538 an aliphatic chain, e.g., dodecandiol or undecyl residues (Kabanov et al, FEBS Lett., 1990, 259, 327-330; Svinarchuk et al, Biochimie, 1993, 75, 49- 54), a phospholipid, e.g., di- hexadecyl-rac-glycerol or triethylammonium 1,2-di-O-hexadecyl- rac-glycero-3-H- phosphonate (Manoharan et al, Tetrahedron Lett., 1995, 36, 3651-3654; Shea et al, Nucl.
- a phospholipid e.g., di- hexadecyl-rac-glycerol or triethylammonium 1,2-di-O-hexadecyl- rac-glycero-3
- Acids Res., 1990, 18, 3777-3783 a polyamine or a polyethylene glycol chain (Mancharan et al, Nucleosides & Nucleotides, 1995, 14, 969-973), or adamantane acetic acid (Manoharan et al, Tetrahedron Lett., 1995, 36, 3651-3654), a palmityl moiety (Mishra et al., Biochim. Biophys. Acta, 1995, 1264, 229-237), or an octadecylamine or hexylamino-carbonyl-t oxycholesterol moiety (Crooke et al, J. Pharmacol. Exp.
- conjugate groups of the invention include intercalators, reporter molecules, polyamines, polyamides, polyethylene glycols, polyethers, groups that enhance the
- Typical conjugate groups include cholesterols, lipids, phospholipids, biotin, phenazine, folate, phenanthridine, anthraquinone, acridine, fluoresceins, rhodamines, coumarins, and dyes.
- Groups that enhance the pharmacodynamic properties include groups that improve uptake, enhance resistance to degradation, and/or strengthen sequence-specific hybridization with the target nucleic acid.
- Groups that enhance the pharmacokinetic properties include groups that improve uptake, distribution, metabolism or excretion of the compounds of the present invention. Representative conjugate groups are disclosed in International Patent Application No. PCT/US92/09196, filed Oct. 23, 1992, and U.S. Pat. No.
- Conjugate moieties include, but are not limited to, lipid moieties such as a cholesterol moiety, cholic acid, a thioether, e.g., hexyl-5-tritylthiol, a thiocholesterol, an aliphatic chain, e.g., dodecandiol or undecyl residues, a phospholipid, e.g., di-hexadecyl-rac- glycerol or triethylammonium l,2-di-0-hexadecyl-rac-glycero-3-H-phosphonate, a polyamine or a polyethylene glycol chain, or adamantane acetic acid, a palmityl moiety, or an octadecylamine or hexylamino-carbonyl-oxy cholesterol moiety.
- lipid moieties such as a cholesterol moiety, cholic acid, a thioether
- inhibitory nucleic acids useful in the present methods are sufficiently complementary to the target IncRNA, e.g., hybridize sufficiently well and with sufficient biological functional specificity, to give the desired effect.
- “Complementary” refers to the capacity for pairing, through base stacking and specific hydrogen bonding, between two sequences comprising naturally or non- naturally occurring (e.g., modified as described above) bases (nucleosides) or analogs thereof. For example, if a base at one position of an inhibitory nucleic acid is capable of hydrogen bonding with a base at the corresponding position of a IncRNA, then the bases are considered to be complementary to each other at that position. 100% complementarity is not required.
- inhibitory nucleic acids can comprise universal bases, or inert abasic spacers that provide no positive or negative contribution to hydrogen bonding.
- Base pairings may include both canonical Watson- Crick base pairing and non- Watson-Crick base pairing (e.g., Wobble base pairing and Hoogsteen base pairing). It is understood that for complementary base pairings, adenosine-type bases (A) are complementary to thymidine-type bases (T) or uracil- type bases (U), that cytosine-type bases (C) are complementary to guanosine-type bases (G), and that universal bases such as such as 3-nitropyrrole or 5-nitroindole can hybridize to and are considered complementary to any A, C, U, or T.
- A adenosine-type bases
- T thymidine-type bases
- U uracil- type bases
- C cytosine-type bases
- G guanosine-type bases
- universal bases such as such as 3-nitropyrrole or 5-nitroindole can hybridize to and are considered complementary to any A, C, U, or T.
- Inosine (I) has also been considered in the art to be a universal base and is considered complementary to any A, C, U, or T. See Watkins and SantaLucia, Nucl. Acids Research, 2005; 33 (19): 6258-6267.
- the location on a target IncRNA to which an inhibitory nucleic acids hybridizes is defined as a target region to which a protein binding partner binds.
- regions can be identified by reviewing the data submitted herewith in Appendix I and identifying regions that are enriched in the dataset; these regions are likely to include the protein binding sequences. The identification of such regions, termed Peaks, is described in Example 8 below. Routine methods can be used to design an inhibitory nucleic acid that binds to this sequence with sufficient specificity. In some embodiments, the methods include using bioinformatics methods known in the art to identify regions of secondary structure, e.g., one, two, or more stem-loop structures, or pseudoknots, and selecting those regions to target with an inhibitory nucleic acid.
- Target segments 5-500 nucleotides in length comprising a stretch of at least five (5) consecutive nucleotides within the protein binding region, or immediately adjacent thereto, are considered to be suitable for targeting as well.
- Target segments can include sequences that comprise at least the 5 consecutive nucleotides from the 5 '-terminus of one of the protein binding regions (the remaining nucleotides being a consecutive stretch of the same RNA beginning immediately upstream of the 5 '-terminus of the binding segment and continuing until the inhibitory nucleic acid contains about 5 to about 100 nucleotides).
- preferred target segments are represented by RNA sequences that comprise at least the 5 consecutive nucleotides from the 3 '-terminus of one of the illustrative preferred target segments (the remaining nucleotides being a consecutive stretch of the same IncRNA beginning immediately downstream of the 3 '-terminus of the target segment and continuing until the inhibitory nucleic acid contains about 5 to about 100 nucleotides).
- hybridization means base stacking and hydrogen bonding, which may be Watson-Crick, Hoogsteen or reversed Hoogsteen hydrogen bonding, between complementary nucleoside or nucleotide bases.
- adenine and thymine are complementary nucleobases which pair through the formation of hydrogen bonds.
- Complementary refers to the capacity for precise pairing between two nucleotides. For example, if a nucleotide at a certain position of an oligonucleotide is capable of hydrogen bonding with a nucleotide at the same position of a IncRNA molecule, then the inhibitory nucleic acid and the IncRNA are considered to be complementary to each other at that position.
- the inhibitory nucleic acids and the IncRNA are complementary to each other when a sufficient number of corresponding positions in each molecule are occupied by nucleotides that can hydrogen bond with each other through their bases.
- “specifically hybridizable” and “complementary” are terms which are used to indicate a sufficient degree of complementarity or precise pairing such that stable and specific binding occurs between the inhibitory nucleic acid and the IncRNA target. For example, if a base at one position of an inhibitory nucleic acid is capable of hydrogen bonding with a base at the corresponding position of a IncRNA, then the bases are considered to be complementary to each other at that position. 100%
- a complementary nucleic acid sequence need not be 100% complementary to that of its target nucleic acid to be specifically
- a complementary nucleic acid sequence for purposes of the present methods is specifically hybridizable when binding of the sequence to the target IncRNA molecule interferes with the normal function of the target IncRNA to cause a loss of activity (e.g., inhibiting PRC2-associated repression with consequent up- regulation of gene expression) and there is a sufficient degree of complementarity to avoid non-specific binding of the sequence to non-target IncRNA sequences under conditions in which avoidance of the non-specific binding is desired, e.g., under physiological conditions in the case of in vivo assays or therapeutic treatment, and in the case of in vitro assays, under conditions in which the assays are performed under suitable conditions of stringency.
- stringent salt concentration will ordinarily be less than about 750 mM NaCl and 75 mM trisodium citrate, preferably less than about 500 mM NaCl and 50 mM trisodium citrate, and more preferably less than about 250 mM NaCl and 25 mM trisodium citrate.
- Low stringency hybridization can be obtained in the absence of organic solvent, e.g., formamide, while high stringency hybridization can be obtained in the presence of at least about 35% formamide, and more preferably at least about 50% formamide.
- Stringent temperature conditions will ordinarily include temperatures of at least about 30° C, more preferably of at least about 37° C, and most preferably of at least about 42° C.
- Varying additional parameters, such as hybridization time, the concentration of detergent, e.g., sodium dodecyl sulfate (SDS), and the inclusion or exclusion of carrier DNA, are well known to those skilled in the art.
- concentration of detergent e.g., sodium dodecyl sulfate (SDS)
- SDS sodium dodecyl sulfate
- Various levels of stringency are accomplished by combining these various conditions as needed.
- hybridization will occur at 30° C in 750 mM NaCl, 75 mM trisodium citrate, and 1% SDS.
- hybridization will occur at 37° C in 500 mM NaCl, 50 mM trisodium citrate, 1% SDS, 35% formamide, and 100 ⁇ g/ml denatured salmon sperm DNA (ssDNA).
- hybridization will occur at 42° C in 250 mM NaCl, 25 mM trisodium citrate, 1% SDS, 50% formamide, and 200 ⁇ g/ml ssDNA. Useful variations on these conditions will be readily apparent to those skilled in the art.
- wash stringency conditions can be defined by salt concentration and by temperature. As above, wash stringency can be increased by decreasing salt concentration or by increasing temperature.
- stringent salt concentration for the wash steps will preferably be less than about 30 mM NaCl and 3 mM trisodium citrate, and most preferably less than about 15 mM NaCl and 1.5 mM trisodium citrate.
- Stringent temperature conditions for the wash steps will ordinarily include a temperature of at least about 25° C, more preferably of at least about 42° C, and even more preferably of at least about 68° C.
- wash steps will occur at 25° C in 30 mM NaCl, 3 mM trisodium citrate, and 0.1% SDS. In a more preferred embodiment, wash steps will occur at 42° C. in 15 mM NaCl, 1.5 mM trisodium citrate, and 0.1% SDS. In a more preferred embodiment, wash steps will occur at 68° C in 15 mM NaCl, 1.5 mM trisodium citrate, and 0.1% SDS.
- Hybridization techniques are well known to those skilled in the art and are described, for example, in Benton and Davis (Science 196: 180, 1977); Grunstein and Hogness (Proc. Natl. Acad. Sci., USA 72:3961, 1975); Ausubel et al. (Current Protocols in Molecular Biology, Wiley Interscience, New York, 2001); Berger and Kimmel (Guide to Molecular Cloning Techniques, 1987, Academic Press, New York); and Sambrook et al, Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Laboratory Press, New York.
- the inhibitory nucleic acids useful in the methods described herein have at least 80% sequence complementarity to a target region within the target nucleic acid, e.g., 90%, 95%, or 100% sequence complementarity to the target region within an IncRNA.
- an antisense compound in which 18 of 20 nucleobases of the antisense oligonucleotide are complementary, and would therefore specifically hybridize, to a target region would represent 90 percent complementarity.
- Percent complementarity of an inhibitory nucleic acid with a region of a target nucleic acid can be determined routinely using basic local alignment search tools (BLAST programs) (Altschul et al, J. Mol.
- Antisense and other compounds of the invention that hybridize to an IncRNA are identified through routine experimentation.
- the inhibitory nucleic acids must retain specificity for their target, i.e., either do not directly bind to, or do not directly significantly affect expression levels of, transcripts other than the intended target.
- Target-specific effects with corresponding target-specific functional biological effects, are possible even when the inhibitory nucleic acid exhibits nonspecific binding to a large number of non-target RNAs.
- short 8 base long inhibitory nucleic acids that are fully complementary to a IncRNA may have multiple 100% matches to hundreds of sequences in the genome, yet may produce target-specific effects, e.g. upregulation of a specific target gene through inhibition of PRC2 activity.
- 8-base inhibitory nucleic acids have been reported to prevent exon skipping with with a high degree of specificity and reduced off-target effect. See Singh et al, RNA Biol, 2009; 6(3): 341-350. 8-base inhibitory nucleic acids have been reported to interfere with miRNA activity without significant off-target effects. See Obad et al, Nature Genetics, 201 1; 43: 371-378.
- inhibitory nucleic acids please see:
- US2010/0317718 antisense oligos
- US2010/0249052 double-stranded ribonucleic acid (dsRNA)
- US2009/0181914 and US2010/0234451 LNA molecules
- US2007/0191294 siRNA analogues
- US2008/0249039 modified siRNA
- WO2010/129746 and WO2010/0401 12 inhibitor nucleic acids
- the inhibitory nucleic acids are antisense
- Antisense oligonucleotides are typically designed to block expression of a DNA or RNA target by binding to the target and halting expression at the level of transcription, translation, or splicing.
- Antisense oligonucleotides of the present invention are complementary nucleic acid sequences designed to hybridize under stringent conditions to an IncRNA in vitro, and are expected to inhibit the activity of PRC2 in vivo.
- oligonucleotides are chosen that are sufficiently complementary to the target, i.e., that hybridize sufficiently well and with sufficient biological functional specificity, to give the desired effect.
- the inhibitory nucleic acids used in the methods described herein comprise one or more modified bonds or bases.
- Modified bases include phosphorothioate, methylphosphonate, peptide nucleic acids, or locked nucleic acids (LNAs).
- the modified nucleotides are part of locked nucleic acid molecules, including [alpha]-L-LNAs.
- LNAs include ribonucleic acid analogues wherein the ribose ring is "locked" by a methylene bridge between the 2'-oxgygen and the 4'-carbon - i.e., oligonucleotides containing at least one LNA monomer, that is, one 2'-0,4'-C-methylene- ?-D-ribofuranosyl nucleotide.
- LNA bases form standard Watson-Crick base pairs but the locked configuration increases the rate and stability of the basepairing reaction (Jepsen et al, Oligonucleotides, 14, 130-146 (2004)).
- LNAs also have increased affinity to base pair with RNA as compared to DNA.
- LNAs especially useful as probes for fluorescence in situ hybridization (FISH) and comparative genomic hybridization, as knockdown tools for miRNAs, and as antisense oligonucleotides to target mRNAs or other RNAs, e.g., IncRNAs as described herien.
- the modified base/LNA molecules can include molecules comprising 10-30, e.g., 12-24, e.g., 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 nucleotides in each strand, wherein one of the strands is substantially identical, e.g., at least 80% (or more, e.g., 85%, 90%, 95%, or 100%) identical, e.g., having 3, 2, 1, or 0 mismatched nucleotide(s), to a target region in the IncRNA.
- the modified base/LNA molecules can be chemically synthesized using methods known in the art.
- the modified base/LNA molecules can be designed using any method known in the art; a number of algorithms are known, and are commercially available (e.g., on the internet, for example at exiqon.com). See, e.g., You et al, Nuc. Acids. Res.
- GC content is preferably between about 30--60 %.
- LNA sequences will bind very tightly to other LNA sequences, so it is preferable to avoid significant complementarity within an LNA molecule. Contiguous runs of three or more Gs or Cs, or more than four LNA residues, should be avoided where possible (for example, it may not be possible with very short (e.g., about 9-10 nt) oligonucleotides).
- the LNAs are xylo-LNAs.
- the modified base/LNA molecules can be designed to target a specific region of the IncRNA.
- a specific functional region can be targeted, e.g., a region comprising a known RNA localization motif (i.e., a region complementary to the target nucleic acid on which the IncRNA acts), or a region comprising a known protein binding region, e.g., a Polycomb (e.g., Polycomb Repressive Complex 2 (PRC2), comprised of H3K27 methylase EZH2, SUZ12, and EED)) or LSDl/CoREST/REST complex binding region (see, e.g., Tsai et al, Science.
- PRC2 Polycomb Repressive Complex 2
- LNAs Locked nucleic acids
- PNAS published ahead of print December 6, 2010, doi: 10.1073/pnas. l009785107.
- highly conserved regions can be targeted, e.g., regions identified by aligning sequences from disparate species such as primate (e.g., human) and rodent (e.g., mouse) and looking for regions with high degrees of identity.
- Percent identity can be determined routinely using basic local alignment search tools (BLAST programs) (Altschul et al., J. Mol. Biol, 1990, 215, 403-410; Zhang and Madden, Genome Res., 1997, 7, 649-656), e.g., using the default parameters.
- BLAST programs Basic local alignment search tools
- the present disclosure demonstrates the ability of LNA molecules to displace a cis-acting nuclear long ncRNA with fast kinetics (e.g., RNA/PRC2 disassociation from the chromosome after 2, 5, 10 seconds up to 60 minutes as described herein) - a property that enables the modification and study of the function of long ncRNAs in ways not previously possible.
- fast kinetics e.g., RNA/PRC2 disassociation from the chromosome after 2, 5, 10 seconds up to 60 minutes as described herein
- RNA relocalization suggests that Xist and PRC2 spread along X at the same time but does not reach saturating levels for 24 hours, providing a window of opportunity to reprogram the chromatin, if necessary.
- RNA-protein complex may be anchored to the inactive X chromosome (Xi) chromatin via Repeat C.
- the LNA molecule's binding to Repeat C could change RNA conformation and interfere with a remote anchoring domain.
- LNA molecules can be used as a valuable tool to manipulate and aid analysis of long nuclear ncRNAs.
- Advantages offered by an LNA molecule-based system are the relatively low costs, easy delivery, and rapid action. While other inhibitory nucleic acids may exhibit effects after longer periods of time, LNA molecules exhibit effects that are more rapid, e.g., a comparatively early onset of activity, are fully reversible after a recovery period following the synthesis of new IncRNA, and occur without causing substantial or substantially complete RNA cleavage or degradation.
- One or more of these design properties may be desired properties of the inhibitory nucleic acids of the invention.
- LNA molecules make possible the systematic targeting of domains within much longer nuclear transcripts.
- the LNA technology enables high-throughput screens for functional analysis of long non-coding RNAs and also provides a novel tool to manipulate chromatin states in vivo for therapeutic applications.
- the methods described herein include using LNA molecules to target lncRNAs for a number of uses, including as a research tool to probe the function of a specific IncRNA, e.g., in vitro or in vivo.
- the methods include selecting one or more desired lncRNAs, designing one or more LNA molecules that target the IncRNA, providing the designed LNA molecule, and administering the LNA molecule to a cell or animal.
- the methods can optionally include selecting a region of the IncRNA and designing one or more LNA molecules that target that region of the IncRNA.
- LNA molecules can be created to treat such imprinted diseases.
- the long QT Syndrome can be caused by a K+ gated Calcium-channel encoded by Kcnql.
- LNA molecules can be created to downregulate Kcnqlotl, thereby restoring expression of Kcnql.
- LNA molecules could inhibit LncRNA cofactors for polycomb complex chromatin modifiers to reverse the imprinted defect.
- LNA molecules or similar polymers e.g., xylo-LNAs
- LNA molecules or similar polymers that specifically bind to, or are complementary to, PRC2 -binding lncRNA can prevent recruitment of PRC2 to a specific chromosomal locus, in a gene-specific fashion.
- LNA molecules might also be administered in vivo to treat other human diseases, such as but not limited to cancer, neurological disorders, infections, inflammation, and myotonic dystrophy.
- LNA molecules might be delivered to tumor cells to downregulate the biologic activity of a growth-promoting or oncogenic long nuclear ncRNA (e.g., Gtl2 or MALAT1 (Luo et al, Hepatology. 44(4): 1012-24 (2006)), a lncRNA associated with metastasis and is frequently upregulated in cancers).
- Repressive lncRNAs downregulating tumor suppressors can also be targeted by LNA molecules to promote reexpression.
- INK4b/ARF/INK4a tumor suppressor locus expression of the INK4b/ARF/INK4a tumor suppressor locus is controlled by Polycomb group proteins including PRC 1 and PRC2 and repressed by the antisense noncoding RNA ANRIL (Yap et al, Mol Cell. 2010 Jun 1 1;38(5):662-74).
- ANRIL can be targeted by LNA molecules to promote reexpression of the INK4b/ARF/INK4a tumor suppressor.
- Some lncRNA may be positive regulators of oncogenes. Such "activating lncRNAs" have been described recently (e.g., Jpx (Tian et al, Cell. 143(3):390-403 (2010) and others (0rom et al., Cell.
- LNA molecules could be directed at these activating IncRNAs to downregulate oncogenes.
- LNA molecules could also be delivered to inflammatory cells to downregulate regulatory lncRNA that modulate the inflammatory or immune response, (e.g., LincRNA-Cox2, see Guttman et al, Nature. 458(7235):223-7. Epub 2009 Feb 1 (2009)).
- the LNA molecules targeting IncRNAs described herein can be used to create animal or cell models of conditions associated with altered gene expression (e.g., as a result of altered epigenetics).
- X-chromosome changes are often seen in female reproductive cancers.
- Some 70% of breast carcinomas lack a 'Barr body', the cytologic hallmark of the inactive X chromosome (Xi), and instead harbor two or more active Xs (Xa).
- Additional X's are also a risk factor for men, as XXY men (Klinefelter Syndrome) have a 20- to 50-fold increased risk of breast cancer in a BRCA1 background.
- the X is also known to harbor a number of oncogenes.
- ALL acute lymphoblastic leukemias
- Xist may be a tumor suppressor.
- the methods described herein may also be useful for creating animal or cell models of other conditions associated with aberrant imprinted gene expression, e.g., as noted above.
- the results described herein demonstrate the utility of LNA molecules for targeting long ncRNA, for example, to transiently disrupt chromatin for purposes of reprogramming chromatin states ex vivo.
- LNA molecules stably displace RNA for hours and chromatin does not rebuild for hours thereafter, LNA molecules create a window of opportunity to manipulate the epigenetic state of specific loci ex vivo, e.g., for reprogramming of hiPS and hESC prior to stem cell therapy.
- Gtl2 controls expression of DLK1, which modulates the pluripotency of iPS cells.
- Low Gtl2 and high DLK1 is correlated with increased pluripotency and stability in human iPS cells.
- LNA molecules targeting Gtl2 can be used to inhibit differentiation and increase pluripotency and stability of iPS cells.
- the inhibitory nucleic acid is an antagomir.
- Antagomirs are chemically modified antisense oligonucleotides that can target an IncRNA.
- an antagomir for use in the methods described herein can include a nucleotide sequence sufficiently complementary to hybridize to an IncRNA target sequence of about 12 to 25 nucleotides, preferably about 15 to 23 nucleotides.
- antagomirs include a cholesterol moiety, e.g., at the 3'- end.
- antagomirs have various modifications for RNase protection and pharmacologic properties such as enhanced tissue and cellular uptake.
- an antagomir can have one or more of complete or partial 2'-0-methylation of sugar and/or a phosphorothioate backbone. Phosphorothioate modifications provide protection against RNase or other nuclease activity and their lipophilicity contributes to enhanced tissue uptake.
- the antagomir cam include six phosphorothioate backbone modifications; two phosphorothioates are located at the 5'-end and four at the 3'-end, but other patterns of phosphorothioate modification are also commonly employed and effective. See, e.g., Krutzfeldt et al., Nature 438, 685- 689 (2005); Czech, N Engl J Med 2006; 354: 1 194-1195 (2006); Robertson et al, Silence. 1 : 10 (2010); Marquez and McCaffrey, Hum Gene Ther. 19(l):27-38 (2008); van Rooij et al, Circ Res.
- antagomir avoids target RNA degradation due to the modified sugars present in the molecule.
- the presence of an unbroken string of unmodified sugars supports RNAseH recruitment and enzymatic activity.
- the design of an antagomir will include bases that contain modified sugar (e.g., LNA), at the ends or interspersed with natural ribose or deoxyribose nucleobases.
- Antagomirs useful in the present methods can also be modified with respect to their length or otherwise the number of nucleotides making up the antagomir.
- the antagomirs must retain specificity for their target, i.e., must not directly bind to, or directly significantly affect expression levels of, transcripts other than the intended target.
- antagomirs may exhibit nonspecific binding that does not produce significant undesired biologic effect, e.g., the antagomirs do not affect expression levels of non-target transcripts or their association with regulatory proteins or regulatory RNAs..
- Interfering RNA including siRNA/shRNA
- the interfering RNA can be assembled from two separate oligonucleotides, where one strand is the sense strand and the other is the antisense strand, wherein the antisense and sense strands are self-complementary (i.e., each strand comprises nucleotide sequence that is complementary to nucleotide sequence in the other strand; such as where the antisense strand and sense strand form a duplex or double stranded structure); the antisense strand comprises nucleotide sequence that is complementary to a nucleotide sequence in a target nucleic acid molecule or a portion thereof (i.e., an undesired gene) and the sense strand comprises nucleotide sequence corresponding to the target nucleic acid sequence or a portion thereof.
- interfering RNA is assembled from a single oligonucleotide, where the self-complementary sense and antisense regions are linked by means of nucleic acid based or non-nucleic acid-based linker(s).
- the interfering RNA can be a polynucleotide with a duplex, asymmetric duplex, hairpin or asymmetric hairpin secondary structure, having self- complementary sense and antisense regions, wherein the antisense region comprises a nucleotide sequence that is complementary to nucleotide sequence in a separate target nucleic acid molecule or a portion thereof and the sense region having nucleotide sequence corresponding to the target nucleic acid sequence or a portion thereof.
- the interfering can be a circular single-stranded polynucleotide having two or more loop structures and a stem comprising self-complementary sense and antisense regions, wherein the antisense region comprises nucleotide sequence that is complementary to nucleotide sequence in a target nucleic acid molecule or a portion thereof and the sense region having nucleotide sequence corresponding to the target nucleic acid sequence or a portion thereof, and wherein the circular polynucleotide can be processed either in vivo or in vitro to generate an active siRNA molecule capable of mediating RNA interference.
- the interfering RNA coding region encodes a self- complementary RNA molecule having a sense region, an antisense region and a loop region.
- a self- complementary RNA molecule having a sense region, an antisense region and a loop region.
- Such an RNA molecule when expressed desirably forms a "hairpin" structure, and is referred to herein as an "shRNA.”
- the loop region is generally between about 2 and about 10 nucleotides in length. In some embodiments, the loop region is from about 6 to about 9 nucleotides in length.
- the sense region and the antisense region are between about 15 and about 20 nucleotides in length.
- the small hairpin RNA is converted into a siRNA by a cleavage event mediated by the enzyme Dicer, which is a member of the RNase III family.
- Dicer which is a member of the RNase III family.
- the siRNA is then capable of inhibiting the expression of a gene with which it shares homology.
- Dicer a member of the RNase III family.
- the siRNA is then capable of inhibiting the expression of a gene with which it shares homology.
- siRNAs The target RNA cleavage reaction guided by siRNAs is highly sequence specific.
- siRNA containing a nucleotide sequences identical to a portion of the target nucleic acid are preferred for inhibition.
- 100% sequence identity between the siRNA and the target gene is not required to practice the present invention.
- the invention has the advantage of being able to tolerate sequence variations that might be expected due to genetic mutation, strain polymorphism, or evolutionary divergence.
- siRNA sequences with insertions, deletions, and single point mutations relative to the target sequence have also been found to be effective for inhibition.
- siRNA sequences with nucleotide analog substitutions or insertions can be effective for inhibition.
- the siRNAs must retain specificity for their target, i.e., must not directly bind to, or directly
- transcripts other than the intended target significantly affect expression levels of, transcripts other than the intended target.
- the inhibitory nucleic acids are ribozymes.
- Trans- cleaving enzymatic nucleic acid molecules can also be used; they have shown promise as therapeutic agents for human disease (Usman & McSwiggen, 1995 Ann. Rep. Med. Chem. 30, 285-294; Christoffersen and Marr, 1995 J. Med. Chem. 38, 2023-2037).
- Enzymatic nucleic acid molecules can be designed to cleave specific IncRNA targets within the background of cellular RNA. Such a cleavage event renders the IncRNA non- functional.
- enzymatic nucleic acids with RNA cleaving activity act by first binding to a target RNA. Such binding occurs through the target binding portion of a enzymatic nucleic acid which is held in close proximity to an enzymatic portion of the molecule that acts to cleave the target RNA.
- the enzymatic nucleic acid first recognizes and then binds a target RNA through complementary base pairing, and once bound to the correct site, acts enzymatically to cut the target RNA. Strategic cleavage of such a target RNA will destroy its ability to direct synthesis of an encoded protein. After an enzymatic nucleic acid has bound and cleaved its RNA target, it is released from that RNA to search for another target and can repeatedly bind and cleave new targets.
- RNA- cleaving ribozymes for the purpose of regulating gene expression.
- the hammerhead ribozyme functions with a catalytic rate (kcat) of about 1 min 1 in the presence of saturating (10 MM) concentrations of Mg 2+ cofactor.
- An artificial "RNA ligase" ribozyme has been shown to catalyze the corresponding self-modification reaction with a rate of about 100 min "1 .
- certain modified hammerhead ribozymes that have substrate binding arms made of DNA catalyze RNA cleavage with multiple turn-over rates that approach 100 min "1 .
- nucleic acid sequences used to practice the methods described herein can be isolated from a variety of sources, genetically engineered, amplified, and/or expressed/ generated recombinantly. If desired, nucleic acid sequences of the invention can be inserted into delivery vectors and expressed from transcription units within the vectors.
- the recombinant vectors can be DNA plasmids or viral vectors.
- Generation of the vector construct can be accomplished using any suitable genetic engineering techniques well known in the art, including, without limitation, the standard techniques of PCR, oligonucleotide synthesis, restriction endonuclease digestion, ligation, transformation, plasmid purification, and DNA sequencing, for example as described in Sambrook et al. Molecular Cloning: A Laboratory Manual. (1989)), Coffin et al. (Retroviruses. (1997)) and "RNA Viruses: A Practical
- inhibitory nucleic acids of the invention are synthesized chemically .
- Nucleic acid sequences used to practice this invention can be synthesized in vitro by well-known chemical synthesis techniques, as described in, e.g., Adams (1983) J. Am. Chem. Soc. 105:661; Belousov (1997) Nucleic Acids Res. 25:3440- 3444; Frenkel (1995) Free Radic. Biol. Med. 19:373-380; Blommers (1994)
- nucleic acid sequences of the invention can be stabilized against nucleolytic degradation such as by the incorporation of a modification, e.g., a nucleotide modification.
- nucleic acid sequences of the invention includes a phosphorothioate at least the first, second, or third internucleotide linkage at the 5' or 3' end of the nucleotide sequence.
- the nucleic acid sequence can include a 2'-modified nucleotide, e.g., a 2'-deoxy, 2'-deoxy-2'-fluoro, 2'-0-methyl, 2'- O-methoxyethyl (2'-0-MOE), 2'-0-aminopropyl (2'-0-AP), 2'-0-dimethylaminoethyl (2'-0-DMAOE), 2'-0-dimethylaminopropyl (2'-0-DMAP), 2'-0- dimethylaminoethyloxyethyl (2'-0-DMAEOE), or 2'-0-N-methylacetamido (2'-0- NMA).
- a 2'-modified nucleotide e.g., a 2'-deoxy, 2'-deoxy-2'-fluoro, 2'-0-methyl, 2'- O-methoxyethyl (2'-0-MOE), 2'-0-aminopropyl (2'-
- the nucleic acid sequence can include at least one 2'-0- methyl-modified nucleotide, and in some embodiments, all of the nucleotides include a 2'-0-methyl modification.
- the nucleic acids are "locked," i.e., comprise nucleic acid analogues in which the ribose ring is "locked” by a methylene bridge connecting the 2'-0 atom and the 4'-C atom (see, e.g., Kaupinnen et al, Drug Disc. Today 2(3):287-290 (2005); Koshkin et al, J. Am. Chem. Soc, 120(50): 13252-13253 (1998)).
- Kaupinnen et al Drug Disc. Today 2(3):287-290 (2005)
- Koshkin et al J. Am. Chem. Soc, 120(50): 13252-13253 (1998).
- any of the modified chemistries or formats of inhibitory nucleic acids described herein can be combined with each other, and that one, two, three, four, five, or more different types of modifications can be included within the same molecule.
- nucleic acids used to practice this invention such as, e.g., subcloning, labeling probes (e.g., random-primer labeling using Klenow polymerase, nick translation, amplification), sequencing, hybridization and the like are well described in the scientific and patent literature, see, e.g., Sambrook et al, Molecular Cloning; A Laboratory Manual 3d ed. (2001); Current Protocols in Molecular Biology, Ausubel et al, eds. (John Wiley & Sons, Inc., New York 2010); Kriegler, Gene Transfer and Expression: A Laboratory Manual (1990); Laboratory Techniques In Biochemistry And Molecular Biology: Hybridization With Nucleic Acid Probes, Part I. Theory and Nucleic Acid Preparation, Tijssen, ed. Elsevier, N.Y. (1993).
- labeling probes e.g., random-primer labeling using Klenow polymerase, nick translation, amplification
- sequencing hybridization and the like
- the methods described herein can include the administration of
- compositions and formulations comprising inhibitory nucleic acid sequences designed to target an IncRNA.
- compositions are formulated with a
- compositions and formulations can be administered parenterally, topically, orally or by local administration, such as by aerosol or transdermally.
- the pharmaceutical compositions can be formulated in any way and can be administered in a variety of unit dosage forms depending upon the condition or disease and the degree of illness, the general medical condition of each patient, the resulting preferred method of administration and the like. Details on techniques for formulation and administration of pharmaceuticals are well described in the scientific and patent literature, see, e.g., Remington: The Science and Practice of Pharmacy, 21st ed., 2005.
- the inhibitory nucleic acids can be administered alone or as a component of a pharmaceutical formulation (composition).
- composition may be formulated for administration, in any convenient way for use in human or veterinary medicine.
- Wetting agents, emulsifiers and lubricants, such as sodium lauryl sulfate and magnesium stearate, as well as coloring agents, release agents, coating agents, sweetening, flavoring and perfuming agents, preservatives and antioxidants can also be present in the compositions.
- Formulations of the compositions of the invention include those suitable for intradermal, inhalation, oral/ nasal, topical, parenteral, rectal, and/or intravaginal administration.
- the formulations may conveniently be presented in unit dosage form and may be prepared by any methods well known in the art of pharmacy.
- the amount of active ingredient (e.g., nucleic acid sequences of this invention) which can be combined with a carrier material to produce a single dosage form will vary depending upon the host being treated, the particular mode of administration, e.g., intradermal or inhalation.
- the amount of active ingredient which can be combined with a carrier material to produce a single dosage form will generally be that amount of the compound which produces a therapeutic effect, e.g., an antigen specific T cell or humoral response.
- compositions of this invention can be prepared according to any method known to the art for the manufacture of pharmaceuticals.
- Such drugs can contain sweetening agents, flavoring agents, coloring agents and preserving agents.
- a formulation can be admixtured with nontoxic pharmaceutically acceptable excipients which are suitable for manufacture.
- Formulations may comprise one or more diluents, emulsifiers, preservatives, buffers, excipients, etc. and may be provided in such forms as liquids, powders, emulsions, lyophilized powders, sprays, creams, lotions, controlled release formulations, tablets, pills, gels, on patches, in implants, etc.
- compositions for oral administration can be formulated using pharmaceutically acceptable carriers well known in the art in appropriate and suitable dosages. Such carriers enable the pharmaceuticals to be formulated in unit dosage forms as tablets, pills, powder, dragees, capsules, liquids, lozenges, gels, syrups, slurries, suspensions, etc., suitable for ingestion by the patient.
- Pharmaceutical preparations for oral use can be formulated as a solid excipient, optionally grinding a resulting mixture, and processing the mixture of granules, after adding suitable additional compounds, if desired, to obtain tablets or dragee cores.
- Suitable solid excipients are carbohydrate or protein fillers include, e.g., sugars, including lactose, sucrose, mannitol, or sorbitol; starch from corn, wheat, rice, potato, or other plants; cellulose such as methyl cellulose, hydroxypropylmethyl-cellulose, or sodium carboxy-methylcellulose; and gums including arabic and tragacanth; and proteins, e.g., gelatin and collagen.
- Disintegrating or solubilizing agents may be added, such as the cross-linked polyvinyl pyrrolidone, agar, alginic acid, or a salt thereof, such as sodium alginate.
- Push-fit capsules can contain active agents mixed with a filler or binders such as lactose or starches, lubricants such as talc or magnesium stearate, and, optionally, stabilizers.
- the active agents can be dissolved or suspended in suitable liquids, such as fatty oils, liquid paraffin, or liquid polyethylene glycol with or without stabilizers.
- Aqueous suspensions can contain an active agent (e.g., nucleic acid sequences of the invention) in admixture with excipients suitable for the manufacture of aqueous suspensions, e.g., for aqueous intradermal injections.
- an active agent e.g., nucleic acid sequences of the invention
- Such excipients include a suspending agent, such as sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, sodium alginate, polyvinylpyrrolidone, gum tragacanth and gum acacia, and dispersing or wetting agents such as a naturally occurring phosphatide (e.g., lecithin), a condensation product of an alkylene oxide with a fatty acid (e.g., polyoxyethylene stearate), a condensation product of ethylene oxide with a long chain aliphatic alcohol (e.g., heptadecaethylene oxycetanol), a condensation product of ethylene oxide with a partial ester derived from a fatty acid and a hexitol (e.g., polyoxyethylene sorbitol mono-oleate), or a condensation product of ethylene oxide with a partial ester derived from fatty acid and a hexitol anhydride (e.g., polyoxyethylene sorbitan mono
- the aqueous suspension can also contain one or more preservatives such as ethyl or n-propyl p-hydroxybenzoate, one or more coloring agents, one or more flavoring agents and one or more sweetening agents, such as sucrose, aspartame or saccharin.
- preservatives such as ethyl or n-propyl p-hydroxybenzoate
- coloring agents such as a coloring agent
- flavoring agents such as aqueous suspension
- sweetening agents such as sucrose, aspartame or saccharin.
- Formulations can be adjusted for osmolarity.
- oil-based pharmaceuticals are used for administration of nucleic acid sequences of the invention.
- Oil-based suspensions can be formulated by suspending an active agent in a vegetable oil, such as arachis oil, olive oil, sesame oil or coconut oil, or in a mineral oil such as liquid paraffin; or a mixture of these. See e.g., U.S. Patent No. 5,716,928 describing using essential oils or essential oil components for increasing bioavailability and reducing inter- and intra-individual variability of orally administered hydrophobic pharmaceutical compounds (see also U.S. Patent No. 5,858,401).
- the oil suspensions can contain a thickening agent, such as beeswax, hard paraffin or cetyl alcohol.
- Sweetening agents can be added to provide a palatable oral preparation, such as glycerol, sorbitol or sucrose. These formulations can be preserved by the addition of an antioxidant such as ascorbic acid.
- an injectable oil vehicle see Minto (1997) J. Pharmacol. Exp. Ther. 281 :93-102.
- compositions can also be in the form of oil-in-water emulsions.
- the oily phase can be a vegetable oil or a mineral oil, described above, or a mixture of these.
- Suitable emulsifying agents include naturally-occurring gums, such as gum acacia and gum tragacanth, naturally occurring phosphatides, such as soybean lecithin, esters or partial esters derived from fatty acids and hexitol anhydrides, such as sorbitan mono-oleate, and condensation products of these partial esters with ethylene oxide, such as polyoxyethylene sorbitan mono-oleate.
- the emulsion can also contain sweetening agents and flavoring agents, as in the formulation of syrups and elixirs.
- Such formulations can also contain a demulcent, a preservative, or a coloring agent.
- these injectable oil-in-water emulsions of the invention comprise a paraffin oil, a sorbitan monooleate, an ethoxylated sorbitan monooleate and/or an ethoxylated sorbitan trioleate.
- the pharmaceutical compounds can also be administered by in intranasal, intraocular and intravaginal routes including suppositories, insufflation, powders and aerosol formulations (for examples of steroid inhalants, see e.g., Rohatagi (1995) J. Clin. Pharmacol. 35: 1 187-1 193; Tjwa (1995) Ann. Allergy Asthma Immunol. 75: 107- 111).
- Suppositories formulations can be prepared by mixing the drug with a suitable non-irritating excipient which is solid at ordinary temperatures but liquid at body temperatures and will therefore melt in the body to release the drug.
- suitable non-irritating excipient which is solid at ordinary temperatures but liquid at body temperatures and will therefore melt in the body to release the drug.
- Such materials are cocoa butter and polyethylene glycols.
- the pharmaceutical compounds can be delivered transdermally, by a topical route, formulated as applicator sticks, solutions, suspensions, emulsions, gels, creams, ointments, pastes, jellies, paints, powders, and aerosols.
- the pharmaceutical compounds can also be delivered as microspheres for slow release in the body.
- microspheres can be administered via intradermal injection of drug which slowly release subcutaneously; see Rao (1995) J. Biomater Sci. Polym. Ed. 7:623-645; as biodegradable and injectable gel formulations, see, e.g., Gao (1995) Pharm. Res. 12:857-863 (1995); or, as microspheres for oral administration, see, e.g., Eyles (1997) J. Pharm. Pharmacol. 49:669-674.
- the pharmaceutical compounds can be parenterally administered, such as by intravenous (IV) administration or administration into a body cavity or lumen of an organ.
- IV intravenous
- These formulations can comprise a solution of active agent dissolved in a pharmaceutically acceptable carrier.
- Acceptable vehicles and solvents that can be employed are water and Ringer's solution, an isotonic sodium chloride.
- sterile fixed oils can be employed as a solvent or suspending medium.
- any bland fixed oil can be employed including synthetic mono- or diglycerides.
- fatty acids such as oleic acid can likewise be used in the preparation of injectables. These solutions are sterile and generally free of undesirable matter.
- These formulations may be sterilized by conventional, well known sterilization techniques.
- the formulations may contain pharmaceutically acceptable auxiliary substances as required to approximate physiological conditions such as pH adjusting and buffering agents, toxicity adjusting agents, e.g., sodium acetate, sodium chloride, potassium chloride, calcium chloride, sodium lactate and the like.
- concentration of active agent in these formulations can vary widely, and will be selected primarily based on fluid volumes, viscosities, body weight, and the like, in accordance with the particular mode of administration selected and the patient's needs.
- the formulation can be a sterile injectable preparation, such as a sterile injectable aqueous or oleaginous suspension. This suspension can be formulated using those suitable dispersing or wetting agents and suspending agents.
- the sterile injectable preparation can also be a suspension in a nontoxic parenterally-acceptable diluent or solvent, such as a solution of 1,3- butanediol.
- the administration can be by bolus or continuous infusion (e.g., substantially uninterrupted introduction into a blood vessel for a specified period of time).
- the pharmaceutical compounds and formulations can be lyophilized.
- Stable lyophilized formulations comprising an inhibitory nucleic acid can be made by lyophilizing a solution comprising a pharmaceutical of the invention and a bulking agent, e.g., mannitol, trehalose, raffinose, and sucrose or mixtures thereof.
- a process for preparing a stable lyophilized formulation can include lyophilizing a solution about 2.5 mg/niL protein, about 15 mg/niL sucrose, about 19 mg/niL NaCl, and a sodium citrate buffer having a pH greater than 5.5 but less than 6.5. See, e.g., U.S. 20040028670.
- compositions and formulations can be delivered by the use of liposomes.
- liposomes particularly where the liposome surface carries ligands specific for target cells, or are otherwise preferentially directed to a specific organ, one can focus the delivery of the active agent into target cells in vivo. See, e.g., U.S. Patent Nos. 6,063,400; 6,007,839; Al-Muhammed (1996) J. Microencapsul. 13:293-306; Chonn (1995) Curr. Opin. Biotechnol. 6:698-708; Ostro (1989) Am. J. Hosp. Pharm. 46: 1576-1587.
- liposome means a vesicle composed of amphiphilic lipids arranged in a bilayer or bilayers. Liposomes are unilamellar or multilamellar vesicles that have a membrane formed from a lipophilic material and an aqueous interior that contains the composition to be delivered.
- Cationic liposomes are positively charged liposomes that are believed to interact with negatively charged DNA molecules to form a stable complex. Liposomes that are pH-sensitive or negatively-charged are believed to entrap DNA rather than complex with it. Both cationic and noncationic liposomes have been used to deliver DNA to cells.
- Liposomes can also include "sterically stabilized" liposomes, i.e., liposomes comprising one or more specialized lipids. When incorporated into liposomes, these specialized lipids result in liposomes with enhanced circulation lifetimes relative to liposomes lacking such specialized lipids.
- sterically stabilized liposomes are those in which part of the vesicle-forming lipid portion of the liposome comprises one or more glycolipids or is derivatized with one or more hydrophilic polymers, such as a polyethylene glycol (PEG) moiety.
- PEG polyethylene glycol
- compositions of the invention can be administered for prophylactic and/or therapeutic treatments.
- compositions are administered to a subject who is need of reduced triglyceride levels, or who is at risk of or has a disorder described herein, in an amount sufficient to cure, alleviate or partially arrest the clinical manifestations of the disorder or its complications; this can be called a therapeutically effective amount.
- pharmaceutical compositions of the invention are administered in an amount sufficient to decrease serum levels of triglycerides in the subject. The amount of pharmaceutical composition adequate to accomplish this is a therapeutically effective dose.
- the dosage schedule and amounts effective for this use i.e., the dosing regimen, will depend upon a variety of factors, including the stage of the disease or condition, the severity of the disease or condition, the general state of the patient's health, the patient's physical status, age and the like. In calculating the dosage regimen for a patient, the mode of administration also is taken into consideration.
- the dosage regimen also takes into consideration pharmacokinetics parameters well known in the art, i.e., the active agents' rate of absorption, bioavailability, metabolism, clearance, and the like (see, e.g., Hidalgo-Aragones (1996) J. Steroid Biochem. Mol. Biol. 58:611-617; Groning (1996) Pharmazie 51 :337-341; Fotherby (1996) Contraception 54:59-69; Johnson (1995) J. Pharm. Sci. 84: 1144-1 146; Rohatagi (1995) Pharmazie 50:610-613; Brophy (1983) Eur. J. Clin. Pharmacol. 24: 103-108; Remington: The Science and Practice of Pharmacy, 21st ed., 2005).
- pharmacokinetics parameters well known in the art, i.e., the active agents' rate of absorption, bioavailability, metabolism, clearance, and the like (see, e.g., Hidalgo-Aragones (1996) J. Steroid
- formulations can be given depending on for example: the dosage and frequency as required and tolerated by the patient, the degree and amount of therapeutic effect generated after each administration (e.g., effect on tumor size or growth), and the like.
- the formulations should provide a sufficient quantity of active agent to effectively treat, prevent or ameliorate conditions, diseases or symptoms.
- administration are in a daily amount of between about 1 to 100 or more mg per kilogram of body weight per day.
- Lower dosages can be used, in contrast to administration orally, into the blood stream, into a body cavity or into a lumen of an organ.
- Substantially higher dosages can be used in topical or oral administration or administering by powders, spray or inhalation.
- Actual methods for preparing parenterally or non-parenterally administrable formulations will be known or apparent to those skilled in the art and are described in more detail in such publications as Remington: The Science and Practice of Pharmacy, 21st ed., 2005.
- Various studies have reported successful mammalian dosing using
- LNA molecules locked nucleic acid molecules
- the methods described herein can include coadministration with other drugs or pharmaceuticals, e.g., compositions for providing cholesterol homeostasis.
- the inhibitory nucleic acids can be coadministered with drugs for treating or reducing risk of a disorder described herein.
- RNA immunoprecipitation was performed (Zhao et al, 2008) using 10 7 wildtype 16.7 (Lee and Lu, 1999) and Ezh2-/- (Shen et al., 2008) ES cells.
- RIP-seq libraries cell nuclei were isolated, nuclear lysates were prepared, treated with 400 U/ml DNAse, and incubated with anti-Ezh2 antibodies (Active Motif) or control IgG (Cell Signaling Technology).
- RNA-protein complexes were immunoprecipitated with protein A agarose beads and RNA extracted using Trizol (Invitrogen). To preserve strand information, template switching was used for the library construction (Cloonan et al, 2008).
- RNA and Adaptorl 20-150 ng RNA and Adaptorl (5'- CTTTCCCTACACGACGCTCTTCCGATCTNNNNNN-3'; SEQ ID NO: 934970) were used for first-strand cDNA synthesis using Superscript II Reverse Transcription Kit (Invitrogen). Superscript II adds non-template CCC 3' overhangs, which were used to hybridize to Adaptor2-GGG template-switch primer (5'- CAAGCAGAAGACGGCATACGAGCTCTTCCGATCTGGG-3 ' ; SEQ ID NO: 934971).
- transcriptome transcripts by start coordinate and merged overlapping transcripts on the same strand (joined UCSC transcriptome: 39,003 transcripts total). We then intersected read alignment coordinates with those of the merged UCSC transcripts to determine the number of UCSC transcripts present in the expanded PRC2 transcriptome. Hits to the transcripts were converted to RPKM units, where the read count is l/(n*K*M), and n is the number of alignments in the genome, K is the transcript length divided by 1,000, and M is the sequencing depth including only reads mapping to mm9 divided by 1,000,000 (Mortazavi et al, 2008). This normalization allows for comparisons between transcripts of differing lengths and between samples of differing sequencing depths.
- promoter regions were defined as -10,000 to +2000 bases relative to TSS (obtained from refGene catalog, UCSC Genome Browser, ). We plotted read counts overlapping promoter regions, except that the limit of 10 alignments was relaxed. Reads were normalized such that those mapping to n locations were counted as 1/ ⁇ ⁇ of a read at each location. Graphs were plotted using custom scripts written in R. A list of all enriched transcripts were found by comparing the RPKM scores on each strand for all transcripts in the WT and Ezh2-/- samples. Then their coordinates were intersected with coordinates of the feature of interest.
- LiftOver utility effectively maps one genome to another, allowing rapid identification of regions of interest between successive assemblies of the same species or between two distinct species; available online at genome.ucsc.edu/cgi- bin/hgLiftOver). Only features whose coordinates were convertible are shown.
- RIPs were performed as described (Zhao et al, 2008) using 5 ul of rabbit anti-mouse-Ezh2 antibodies (Active Motif) or normal rabbit IgG (Millipore). RIP was followed by quantitative, strand-specific RT-PCR using the ICYCLER IQTM Real-time detection system (BioRad). Gene-specific PCR primer pairs are:
- Malat- 1 Forward 5 ' -GCCTTTTGTCACCTCACT-3 ' ; SEQ ID NO :
- Ly6e-as Forward 5 ' -CCACACCGAGATTGAGATTG-3 ' ; SEQ ID NO: 934980 Reverse 5 ' -GCCAGGAGAAAGACCATTAC-3 ' ; SEQ ID NO: 934981
- Gtl2 Forward 5 ' - CGAGGACTTCACGCACAAC -3 ' ; SEQ ID NO :
- Gtl2-as Forward 5'-CACCCTGAACATCCAACA-3'; SEQ ID NO:
- Xist-Forward 3F5 and -Reverse 2R primers have been described (Zhao et al, 2008).
- the reverse primer was used, qPCR carried out with SYBR green (BioRad), and threshold crossings (Ct) recorded. Each value was normalized to input RNA levels.
- Meg3-R 5'-CCACTCCTTACTGGCTGCTC-3'; SEQ ID NO: 934997 Meg3 ds-F3, 5'- ATGAAGTCCATGGTGACAGAC-3 ' ; SEQ ID NO: 934998 Meg3 ds-R2, 5 ' -ACGCTCTCGCATACACAATG-3 ' ; SEQ ID NO: 934999 Rtll-F, 5 ' -GTTGGGGATGAAGATGTCGT-3 ' ; SEQ ID NO: 935000 Rtll-R, 5 ' -GAGGCACAAGGGAAAATGAC-3 ' ; SEQ ID NO: 935001 Nespas ds-F, 5 '-TGGACTTGCTACCCAAAAGG-3 ' ; SEQ ID NO: 935002 Nespas ds-R, 5 '-CGATGTTGCCCAGTTATCAG-3 ' ; SEQ ID NO: 935003 Bgn-AS-F, 5
- UV-crosslink IP was performed as described (Ule et al, 2005), except that transcripts in the RNA-protein complexes were not trimmed by RNAse treatment prior to RNA isolation in order to preserve full-length RNA for RT-PCR.
- Mouse ES cells were UV-irradiated at 254 nm, 400 mJ/cm 2 (using a Stratagene
- STRATALINKER cell nuclei were lysed in RSB-TRITON buffer (lOmM Tris-HCl, lOOmM NaCl, 2.5 mM MgCl 2 , 35 ⁇ g/mL digitonin, 0.5% triton X-100) with disruptive sonication. Nuclear lysates were pre-cleared with salmon sperm
- RNA/protein agarose beads for 1 hr at 4°C and incubated with antibodies overnight.
- RNA/antibody complexes were then precipitated with Protein A DY ABEADS (Invitrogen), washed first in a low-stringency buffer (1XPBS [150 mM NaCl], 0.1% SDS, 0.5% deoxycholate, 0.5% NP-40), then washed twice in a high-stringency, high- salt buffer (5XPBS [750 mM NaCl], 0.1% SDS, 0.5% deoxycholate, 0.5% NP-40), and treated with proteinase K.
- RNA was extracted using TRIZOL (Invitrogen) and RT-qPCR was performed as described above.
- N-terminal flagged-tagged EZH2 and SUZ12 in pFastBacl were expressed in Sf9 cells (Francis et al, 2001).
- flag-tagged EZH2 was coexpressed with untagged SUZ12, EED, and RBAP48.
- Extracts were made by four freeze-thaw cycles in BC300 buffer (20mM HEPES pH 7.9, 300mM KC1, 0.2mM EDTA, 10% glycerol, ImM DTT, 0.2mM PMSF, and complete protease inhibitors (Roche)) and bound to M2 beads for 4 h and washed with BC2000 before eluting in BC300 with 0.4mg/ml flag peptide.
- EZH2 and PRC2 were adjusted to lOOmM KC1 and loaded onto a HiTrap Heparin FF 1ml column and eluted with a 100-lOOOmM KC1 gradient.
- RNA-EMSA is performed as previously described (Zhao et al, 2008). The 30 nt Hes-1 probe (-270 bp downstream of TSS in an antisense direction) was used for gel shifts. RNA probes were radiolabeled with [ ⁇ -33 ⁇ ] ⁇ using T4 polynucleotide kinase (Ambion). Purified PRC2 proteins (1 ⁇ g) were incubated with labeled probe for lhr at 4 C. RNA-protein complexes were separated on a 4% non-denaturing polyacrylamide gel in 0.5xTBE at 250 V at 4 °C for 1 h. Gels were dried and exposed to Kodak BioMax film.
- RepA-R taataggtgaggtttcaatgatttacatcg; SEQ ID NO: 935009
- Truncated-Gtl2-R CGTCGTGGGTGGAGTCCTCGCGCTGGGCTTCC; SEQ ID NO: 93501 1
- RNAs were then transcribed using the Mega Script T7 (Ambion), purified using Trizol, and slow-cooled to facilitate secondary structure formation.
- 3 ⁇ g of Flag-PRC2 or Flag-GFP and 5 pmol of RNA supplemented with 20U RNAsin were incubated for 30 min on ice.
- ⁇ of flag beads were added and incubated on a rotating wheel at 4°C for 1 hr. Beads were washed 3 times with 200 ⁇ buffer containing 150mM KCl, 25mM Tris pH 7.4, 5mM EDTA, 0.5mM DTT, 0.5% NP40 and ImM PMSF.
- RNA-protein complexes were eluted from flag beads by addition of 35 ⁇ 1 of 0.2M-glycine pH2.5. Eluates were neutralized by addition of 1/10 th volume of 1M Tris pH 8.0 and analyzed by gel electrophoresis.
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WO2020152623A1 (en) * | 2019-01-24 | 2020-07-30 | Friedrich Miescher Institute For Biomedical Research | Synp5 (proa9), a promoter for the specific expression of genes in retinal ganglion cells |
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WO2020152623A1 (en) * | 2019-01-24 | 2020-07-30 | Friedrich Miescher Institute For Biomedical Research | Synp5 (proa9), a promoter for the specific expression of genes in retinal ganglion cells |
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